Garden Basics with Farmer Fred

010 Snails! Slugs! Earwigs! How to Control Them. The Pollinator Victory Garden.

May 12, 2020 Fred Hoffman Season 1 Episode 10
Garden Basics with Farmer Fred
010 Snails! Slugs! Earwigs! How to Control Them. The Pollinator Victory Garden.
Show Notes Transcript Chapter Markers

Snails, slugs, earwigs…who’s chewing on your plants? Well, in fairness, it could be birds, too. But today we have control tips for the slimy and sinister looking Big 3 of Snails, Slugs and Earwigs. 

Did you know that one out of every three bites of food you eat is courtesy of a bee? We have advice on attracting bees and other pollinators to your yard. We chat with author Kim Eierman about her latest book, The Pollinator Victory Garden.

It’s on this, Episode 10 of the Garden Basics with Farmer Fred podcast. And we’ll have you in and out in under 30 minutes! Don’t worry, we won’t sting you.

Links for this show:
Earwig control tips
Snail and slug control tips
Information about Sluggo Plus
The Pollinator Victory Garden by Kim Eierman
Kim Eierman's Ecobeneficial.com website
Pollinator-Friendly Regional Plant Lists from the Xeres Society
Calscape.org Pinpoints California native plants via your CA zip code.

All About Farmer Fred:
Visit the Farmer Fred website: http://farmerfred.com
Daily Garden tips and more on Twitter
The Farmer Fred Rant! Blog
Facebook:  "Get Growing with Farmer Fred"
Instagram: farmerfredhoffman
Farmer Fred Garden Videos on YouTube
Garden columnist, Lodi News-Sentinel 

Thank you for listening, subscribing and commenting on the Garden Basics with Farmer Fred podcast and the Beyond the Garden Basics Newsletter.

Speaker 1:

[inaudible].

Speaker 2:

Welcome to the garden basics with farmer Fred podcast. If you're just a beginning gardener or you want good gardening information, well you've come to the right spot.

Speaker 1:

Okay.

Speaker 2:

Snails, slugs, air wigs. Who's chewing on your plants? Well, in fairness it could be birds too. But today we have controlled tips for the slimy and sinister looking big three of snails, slugs and air wigs. Did you know that one out of every three bites of food you eat comes courtesy of a B. We have advice on attracting bees and other pollinators to your yard. It's all on this episode 10 of the garden basics with farmer Fred podcast. And we'll have you in and out in under 30 minutes. Don't worry, we won't sting you here on the garden basics podcast. We like to tackle your garden questions and I like to bring in the heavy guns when we're answering garden questions. And I can't think of any better gun than Debbie flower. Debbie flower, retired horticultural college professor has gardened throughout the United States and knows her plants and knows why to about the plants and the bugs and all that. So Debbie, if you're ready, I'm ready.

Speaker 3:

I'm ready.

Speaker 2:

I'll do my best. Yeah, I was trying to be nice. It just didn't come out right. That's all water pistol. How about that? Okay. Okay. Pistol arrow. Karen. Karen writes in and says, so what do you recommend to control air wigs? I'm not going to do the semi Berry jar lids of vegetable oil anymore. Last year the air wigs ruined many of my Zinnia plants, so I want to get ahead of them this year. Well, you know, first of all she mentioned the uh, semi buried Charlotte vegetable oil and in, in many ear wig control, uh, instructions, you might see that where you take a mayonnaise jar lid or uh, some small lid and put a couple of drops of cooking oil and some water in it and then bury it up to the lip in the soil where the ear wigs might be traveling. And theoretically they get in the oil and stay there.

Speaker 3:

Yeah, stay, uh, um, sometimes I also had a little soy sauce first or some kind of aroma to attract them. Um, and yes, the insects in general breathe through their skin. And so once they get oil on them, they can't breathe anymore. So, uh, it does kill them.

Speaker 2:

Wow. Whew. I saw that movie. It was, it was called Goldfinger. Alright. So, you know, there's a lot of other Airwing controls. I still, one of my favorites is rolling up a damp newspaper and putting it out where you see them at night and putting, putting that newspaper out in the evening and then going back in the morning and they're usually snug and cozy inside that rolled up newspaper. And then you can just shake them off into a bucket of soapy water,

Speaker 3:

right? They work at night, they're out at night, so you won't see them during the day and they come out and, and uh, uh, do their feeding at night. And those susceptible plants are typically the seedling. So when Karen talks about them, uh, ruining many of her Zinnia plants, I suspect that that was when the zinnias were very young. She just put them in the ground. And so a lot happens in the garden at night when we're not there watching. And here, wigs is one of those ear wig feeding is one of those things. And so yeah, you can put out the damp rolled up newspaper at night near the seedlings where they're, they're going to, uh, feed. And then when they're done feeding that night, they will climb into the damn newspaper as a place to spend the day. And it works. If you can keep that newspaper moist, as does the buried lid of vegetable oil. When they're done, they will, they're very attracted to the odor is what I hear. They will crawl right in and kill themselves. But the other thing that I use, and I use it sparingly, but I do use it when I have seedlings in the ground, um, that I value. And that is, um, a product called Sluggo. Plus it is a Sluggo for the slugs that it is a bait. It is a bait that is attractive to slugs and snails and they will eat it and die. And slugs and snails have, uh, are, are big in California. But I also know that, uh, I've seen them, uh, in my mother's garden in New York, I think they're traveling around the country in potted plants. So if you've never seen them before, again, they feed at night when it's moist and cool. Uh, you may want to check your garden at night. Um, but the Sluggo plus is a very earth-friendly organic. It is, uh, organic certified Omri listed as is what you look for to find a pesticide that's organic certified Omri is the organic material review Institute. And if a product has Omri O M R I on the label, then it can be used in organic production. And so this is a product that is unrealistic and it does work on slugs. But the plus part, you can buy just Sluggo, which is iron phosphate. You can buy other brands of iron phosphate. But the plus part of this product is Spinosad. It's another product also Omri listed. Uh, it's the natural substance that's normally made by soil bacteria. So things that are already living in your garden and have the ability to make it, but it's a concentrated form and it is very effective at controlling ear wigs. So that is a product I would use in my garden to get ear wigs. But one thing to know if you do use it as read a label, as with all pesticides, but this one you use one half to one teaspoon per square yard. That's very, no, that's a very little product over, over that area. It is, uh, it can be toxic to worms, earthworms. So please, please, please read the label and follow all label instructions.

Speaker 2:

Definitely. And as you mentioned, the active ingredient are iron phosphate and the Spinosad and the iron phosphate from everything I read about it is a, it works better if it's slightly damped. So perhaps after applying it lightly sprinkled the area and that I, I think puts out an aroma or something that attracts the slugs, the snails, and probably the air wigs.

Speaker 3:

Okay. Yeah. I remember hearing a presentation by a, uh, representative of one of the companies that sells iron phosphate and it's, it's made in, uh, on pesticide, on a pasta equipment. So it's made like spaghetti and chopped into little pieces so that you can think of, you know, dry spaghetti in the box. It's pretty hard stuff. And slugs and snails are, have very soft bodies. Uh, some controls of slugs and snails include just physical, um, things that we don't find. Uh, diatomaceous earth is one of them. It's to us, it feels soft, almost like talcum powder, but to a slug and snail, it cuts up their little bodies. So rough pasta, if you can think of a pasta broken into little tiny pieces would have rough edges. But if it's, if it's soft, trimmed some moisture that would solve the problem and make it much more palatable, I would think. Not being a Slugger snail, I can't really say though.

Speaker 2:

Now we should point out we were talking about a very specific product and even a subset of a specific product. Sluggo plus is different than Sluggo Sluggo by itself, which controls a snails and slugs is iron phosphate. It's Sluggo plus that also includes the spinosa. And I think that's actually a better way to go because a lot of people have trouble. I have trouble trying to ascertain of who did the damage to the young plant. Was that a slug? Was that a snail or was it an Airwick?

Speaker 3:

Right. Yes. And I, I, it started out this year using only the iron phosphate in my garden, but I was still having trouble with uh, losing seedlings overnight or getting seedlings that were very damaged and a little damage is good actually in a vegetable garden, a little damage to the plant actually activates, um, um, this is urology inside of the plant that actually can make the plant more healthy to us and more healthy for itself. It activates defenses. So a little damage, you need to have an action threshold. And the action threshold should not be a little bit of damage. You should not act to control the past until the past is taking over the garden and eliminating what you want to grow. So that's one topic. But yeah, I was, so I was using the, the, I know I slugs and snails in my garden. I, we didn't come out with them on my hands. Um, so I did put out the iron phosphate alone, but I was still seeing damage and losing seedlings to something else. And airwaves are the next suspect in my yard. And when I used a little bit of this spinosa it worked very well

Speaker 2:

going back to the rolled up damn newspaper that would clue you in that. It definitely would be air wigs. If you found air wigs in that role of newspaper the following morning, I don't think slugs and snails would tend to spend the night there. And I think they would tend to go back to wherever they came from.

Speaker 3:

They also look for moist, dark places to hide. But on that, unfortunately great moist, dark places include the um, interface between in a raised vegetable garden. That spot between the soil and the wall is a vegetable garden. Um, stays nice and dark and stays moist. And so they spend their days right next to the plants they're going to eat that night. Um, they really do need a lot of moisture. They have a different exoskeleton, which is the outside of the insect. They have slugs and scales are a much softer and moisture on the outside, Ben and your wig is, and so the slugs and snails need a greater amount of moisture to uh, survive the night to survive the day. I'm sorry, the warm hot dry day.

Speaker 2:

Now if you, if you are used to using other snail control products, you may be disappointed when you use iron phosphate, the Sluggo or Sluggo plus because you will not see the dead snails. They take it back to their nest where they share it with their buddies. And uh, it's not uncommon to find a snail nest full of dead snails. You do not get the thrill of the kill like you would find with something that has the active ingredient, Matilda hide. But trust me, you want to use iron phosphate. You don't want to use Mattel to hide because of its toxicity to, uh, children and pets.

Speaker 3:

Yes. Yes, you have to get over that. The fact that you're not going to see all of that mucusy mess, uh, that killing slugs and snails with the other type of mentality, hide bait produces. But it is a very effective control and it is much more environmentally friendly and it is not harmful to our pets or wildlife. As it also said. There are other source, other pesticides that contain Spinosad and it comes in different forms. Um, but it's the different forms work in some cases for other insects and not on earwigs. So a pesticide label always by law has to say what it, what pest is used on and what in what garden and situation. And so when in doubt it also has to list the active ingredients. So when in doubt, actually not, when in doubt, always read the pest pesticide label to be sure that it is labeled for the pest you want to control in the situation. So this would be landscape gardening, vegetable gardening. You want something that if you're doing it, using it in a vegetable garden, you, you want to be sure it's not going to poison the food that you eat. And also that it will show spinosa as one of the active ingredients.

Speaker 2:

That is the first step in what we've been calling integrated pest management in controlling pests, starting with the least toxic alternatives. Step number one is always identify the pest.

Speaker 3:

Yes, positively identify the past and that can be, we'll call you. You may need to take it somewhere. Uh, if you're a state as a master gardener program, uh, to take it to one of their events, uh, or probably communicate with them by email. Pictures are always good. Ag commissioners, uh, in the state of California are a possibility to take, take it into the, to the nursery. Uh, and so the people who work there and, and, and potentially they can help you.

Speaker 2:

One good habit to get into if you like, taking pictures of unidentified critters in your garden and then showing it to people to get it identified is to have a reference point in the picture. It could be as simple as a coin that you put next to the pest or the bug. And so we can get an idea of what the size is or if you're, if you're really technical, you could put a ruler under it, but a, a requirement

Speaker 3:

both plant ID class and in a pest management class when the students made their collections of plants and pests there be that they could use pictures that there had to be scale in there, a penny or a ruler or something of known size.

Speaker 2:

Did you make, did you make them use metric rulers?

Speaker 3:

No, I let them choose the, the scale. And if it was something

Speaker 2:

you or someone used the Euro, um, they had to put a sample of it in there. Wow. Okay. Oh, I'm getting a text in here from the ear wig appreciation society and they're uh, they're reminding us that uh, ear wigs do have, uh, a beneficial purpose in the garden. They like to munch on aphids.

Speaker 3:

Oh, okay. I was going to say they're very good at breaking down organic matter and releasing the nutrients back to the soil. So there are at least two wonderful reasons that we have ear wigs in the garden. So it isn't, or not looking to eradicate them from your yard period. Eradication means they're gone and you'll never see them again. We're just looking to control them at the location where they are feeding on your baby. It would be baby plants to the point of losing those baby plants. And only once the plants grow past the, um, the baby stage. Generally ear wigs are not an issue. And, and you want to stop control.

Speaker 2:

And I'm reading here on the university of California website, the IPM page on airway control. And Karen said that her Zinnia is really taking a hit from them. And sure enough, ear wigs may also seriously damage flowers, including zinnias, marigolds and dahlias.

Speaker 3:

So it may have been the flowers, not just the seedlings.

Speaker 2:

Yeah, it could.

Speaker 3:

Yeah. I have seen the waiting, uh, sleeping it appears anyway. Uh, in inside flowers.

Speaker 2:

One thing you really need to do too, if you're trying to figure out, well, is it an ear wig or a slug or a snail? Take a flashlight, go out late at night and look around and you just might see them. Or another way to identify what might be eating your garden is to sprinkle some flour, kitchen flour. I know that's a precious commodity these days, but it takes some kitchen flour and spread it beneath the plant and, and look for trails or footprints the following morning.

Speaker 3:

Right? We might also add that ear wigs. Of course we have the internet and people can look up what in your week is. They're also called pincher bugs because they have uh, uh, pinchers on their rear end. They do not harm humans. I assume they use those pinchers for other, uh, defense, big ID characteristics.

Speaker 2:

Well, we found out a lot today about controlling airwaves and snails and slugs and keep them out of your garden. It takes a lot of vigilance and a lot of steady work. Debbie flower, thanks for a few minutes of your time and let's go kill some slugs and snails and airways. Alrighty. Alrighty. Sounds like there are several ways to reach us here at the garden basics podcast. Call or text us at(916) 292-8964 that's(916) 292-8964 email your questions and pictures to fred@farmerfred.com or post your garden queries at the get growing with farmer Fred Facebook page or at farmer Fred on Twitter for a successful garden. Well you need a little bit of help and fortunately nature provides that assistance with a wide array of pollinating insects and birds and beneficial insects too that go after the garden bad guys. And that allows you to reduce the use of pesticides that you might think you need to use. But to attract those beneficials and pollinators to your yard, you have to lend them a helping hand. And that's the impetus for the new book, the pollinator victory garden. It's by New York based environmental horticulturists Kim Ironman, who's also the founder of eco beneficial and she explains that small changes to our landscape can make huge environmental improvements and she offers up a lot of great tips in the book about getting pollinators to your yard. And we're talking with Kim Ironman back in New York. And Kim, you have an interesting biography in you left wall street to pursue environmental horticulture.

Speaker 4:

Oh boy. Fred, you gave up my dirty little secret, didn't you? I did. I went from one type of green to another. I was always a kid who love nature. I mean, it was just in me. Always wanted to be outdoors. I always want to go hiking, always wanting to be in the woods. Um, uh, gosh, many years ago we moved from, uh, New York city where there wasn't a heck of a lot of nature to a Westchester County. Lo and behold, our house is about seven miles away from the New York botanical garden. And I started to take classes and I got really, really serious about this. So I combined my love of nature with my love of gardening and horticulture and, um, develop this business, uh, eco beneficial to really, um, to teach and um, hopefully inspire folks to garden a little bit differently to help are very, very challenged, uh, environment.

Speaker 2:

So when you look out your window right now, what's in bloom? What does your garden look like?

Speaker 4:

Well, being here in the Northeast, we have a lot of those lovely one led spring bloomers that um, are so charming. Uh, for example, we've got'em are tinsy virginica, which is Virginia blue bells in bloom right now, which is a lovely spring of femoral. And um, it's one of those plants that comes up before the trees leaf out and feeds bees with it's nectar and its pollen and then dies back. It's a femoral so you can plant in a kind of double plant in that area. That's really a lovely one. And um, we've got, uh, we've got some lovely wild geranium, which is not as most people think of geranium, which is a allegedly windlass plant. Edge of the woods is usually where you find it. That's a great source for, um, specific fees. Mining bees that have evolved with that plant. And about 25% of our native bees in North America are pollen specialists. So planning these plants that they've evolved with, uh, in addition to kind of generalist plants is a really an important thing to do.

Speaker 2:

You bring that up in your book a lot. The book, the pollinator victory gardens. So let's talk about some of the tips that you offer up in the book. One of them, one of them makes perfect sense, plant for a succession of blooms through the growing season

Speaker 4:

and we may think we're doing it, but when we start to take a closer look, we may find that we've got a lot of of gaps in bloom time. So I encourage folks to start making a list of what's in bloom throughout the entire growing season. And for us here in the Northeast, that's going to be early Springs for late fall parts of California. It might be almost year round. Look at what's in bloom, make sure you've got at least three different plants that are in flower, whether it's trees, shrubs, vines, perennials, femorals, et cetera, um, that are in bloom at the same time with different floral characteristics to feed different types of pollinators.

Speaker 2:

So your plant season then is what, March through early December.

Speaker 4:

Um, our season here is pretty much March through, I would say November-ish depends, I mean, with climate change things. Um, I've had things in bloom till almost the end of November, which is pretty extraordinary. Historically speaking,

Speaker 2:

I was about to brag that we tomatoes off the vine for Christmas dinner.

Speaker 4:

Their ego a little bit different or a good decision. Yes, exactly. So you've got to, you've got to plant more plants cause you've got to cover more months.

Speaker 2:

Well exactly, yes. And we do too. Yes. In fact, uh, in, in our area here in California and still people get stumped as far as, well what can I plant that is in bloom from November through March and there are two plants that fit that bill and they attract a whole host of pollinators and they are Rosemary and URI ops, Yuri ops, Peck, the Natus and all the forms of Roseberry Rosemary with their nice blue violet flowers that they keep the native bees happy all winter long.

Speaker 4:

And yeah, we'll, we'll give a shout out or two of your wonderful resources in California, Cal scape in California where you can find out what native plants are native to your region and um, you know, make sure you're planting for the critters that are involved in your area.

Speaker 2:

Well, that's also another one of your tips include some native plants to support pollinators and the ecosystem.

Speaker 4:

Sure. My focus, uh, truthfully Fred is, is a native plant. Um, very much, uh, specifically, you know, all of us, um, are entitled to a few, uh, dalliances with, um, you know, noninvasive, uh, uh, non-natives. But, um, I think with our challenge, climate change situation and our environment being so degraded that we really can, um, can make big differences if we focus on plants that have evolved with wildlife around us and support our ecosystems.

Speaker 2:

Yeah. And it's amazing the number of species of insects that thrive on very specific native plants. Like right now in bloom here in California is the California Dutchman's pipe. And there's a species of butterfly that survives solely off that plant. And that's the pipe vine swallowtail butterfly.

Speaker 4:

So you've got, and you'll see that post to coast. So that's a likely and the rest of lochia a species which we have here in the East. And um, a lot of these Woody plants that are native, many of them are host plants or butterfly or moth caterpillars. And, um, we can really do ourselves a favor of we want more of those creatures in our landscape and support them cause they're endangered too. Um, by having host plants, uh, in addition to plants that say, you know, we were buying also for flowers and then in many cases we have plants that do both. Um, both things very well.

Speaker 2:

Yeah, just like we are distracted while driving down the freeway at the huge neon signs that are over our freeways here. Uh, it's true in the plant world as well where we need, as you point out to plant a diverse array of plants with different flower shapes, sizes and colors, and then basically turn them into floral targets, if you will.

Speaker 4:

Right. So there, there's a principle that I call achieving floral balance in our landscapes. That's kind of a good, um, good way to think about this. We need to have a diversity of plant species to feed different types of pollinators because not every pollinator goes to the same type of plant. And pollinators can include things from bees, butterflies and laws, flies, bats, beetles, birds. And not every species within those groups is a pollinator, obviously. But, um, but likely, you know, if you're living in North America, you probably have pollination from almost all those creatures except for maybe bats. And in Southern California, uh, very Southern, um, in parts of the Southwest you'll see some bad pollination of sororal cactus and a GABA. But most of us been, it's cracked all these other creatures, um, by planting diversely. But getting back to floral balance, we also have to plant sufficiently and that means creating floral targets that colonies can find easily. And, um, some research out of a university of California, uh, B lab, Berkeley, a wonderful place, um, and California birds and blooms is an excellent book. I'm encouraged folks to buy my book and buy that book too as a great book. Um, so they've discovered that a target of one species or about three square feet is ideal for, um, most pollinators defined. So some of us can achieve that. Um, some of us don't have landscapes that are large enough for that. And if we have a smaller landscape, you know, we can compromise a little bit and we can create repeating targets of smaller groups of plants throughout the landscape and ear. And in some areas we might want a very naturalistic landscape like a Prairie or a meadow where we can create that erratic bloom of plenty of plants and, um, many ponders we'll still find that fairly easily. And the reason for that is, uh, creatures like these pictures of like butterflies have a behavior called floral constancy and they go on a foraging mission and they're looking for one species of plant. So if you have a meadow scape or a Perry scape arrangement, they'll find what they need.

Speaker 2:

Exactly. Speaking of basil, a lot of California farmers are now incorporating bats into their pest control methodologies by creating a bad habitat in order to keep them around the farm to go after the insect.

Speaker 4:

Sure. Bats or bats, like most creatures, invertebrates and vertebrates alike are in trouble, um, uh, worldwide. So any help we can give them is good. Um, they're not too many species of bats that are pollinating bats, um, in North America. But there, there are a couple.

Speaker 2:

Anyway, one of the most important tips I think you present in the pollinator victory garden to win the war on pollinator decline with ecological gardening is, boy, I've been harping on this for years and it sure makes a lot of sense. Reduce or eliminate your lawn.

Speaker 4:

Yeah, absolutely. Um, I call it the green desert. It is an ecological wasteland for creatures like bees. Um, if you allow European weeds to infringe upon the lawn, that's a little bit better, but it doesn't replace good solid native plant habitat. So, um, keep the lawn that you really use if you plan on it as your kids, do your pets, do you entertain on the lawn, keep what you really use, lose the rest. And whenever you keep manage it or Gannett glee, no pesticides, pesticides and pollinators or a very poor mix on even some of them. Some of the preparations that we use commonly use our landscapes. Even if they don't kill pollinators, they can be sub lethal and weaken them significantly.

Speaker 2:

Definitely. And when you tear out that turf grass, put in some native plants. And here in California we always encourage drought tolerant plants, plants that don't require much water in the, in the big picture. And it's amazing you put in native plants all of a sudden you've got native.

Speaker 4:

Yeah, it's pretty amazing. And of course, California has the greatest, um, diversity of native bees, um, in North America that you have over a thousand species of native bees, which is pretty extraordinary. We here in New York, we have about half that, a little bit less than half of that. They are very many different shapes, sizes, colors, body strength, tunnel length. Um, some don't even look like bees. Um, so let's, let's try to show some, uh, plant love for all of them.

Speaker 2:

We've been talking with Kim Ironman, she's the author of the book, the pollinator victory garden. When the war on pollinator decline with ecological gardening. Kim, if people want more information about the book, where can they go?

Speaker 4:

Well, please visit my website, which is eco beneficial.com and you can pick up the Panera victory garden at your local independent bookseller, any online stores that you like, and I've got a lot of supplemental information that accompanies the book on my website and including regional plan information. So please do visit.

Speaker 2:

All right. Again, that website, eco beneficial.com for more information, including those plant lists. Kim Ironman, thanks for spending a few minutes with us and getting the pollinators back into our yard.

Speaker 4:

Thanks so much, Fred. Appreciate you having me.

Speaker 1:

[inaudible]

Speaker 2:

thank you for listening to garden basics with farmer Fred. I appreciate you listening. Would you please subscribe? You can find the podcast at Apple, Spotify, Stitcher, Google podcast, attic, and Hey, Alexa, play the garden basics with farmer Fred podcast. Thank you. Oh, and one more tip. Go out to the yard today. Enjoy your garden. It'll make you smile.

Snail, Slug, Earwig control tips
The Pollinator Victory Garden