Fungus gnat control? Bacillus thuringiensis var. israelensis
JerilynnC
11 years ago
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sbryce_gw
11 years ago11otis
11 years agoRelated Discussions
Bacillus thuringiensis...a just in case ?
Comments (10)Bacillus thuringiensis kurstaki Type Microbial insecticide. Plant uses Ornamentals, fruit trees, vegetables. Pests controlled Leaf- or bud-feeding caterpillars (the larvae of moths and butterflies). Smaller larvae are more susceptible; caterpillars must eat treated plant surfaces to be killed. Application tips Surfaces where caterpillars feed must be well covered because caterpillars must ingest the bacteria to be affected. Careful timing is essential for success. Apply just after caterpillars begin hatching out of eggs. Small caterpillars are more susceptible than older larvae. Treatment is not effective on eggs, pupae, and adults. The material breaks down rapidly in the environment. Try to avoid making applications when the sun is on the plant. Affected caterpillars will stop feeding within hours, but may not die for 2 to 3 days. Wettable powders that you mix up yourself just prior to application will be most effective. Make up a fresh solution each time you treat. Reapplication will be necessary to kill caterpillars hatching one or more days after an application is made. Here is a link that might be useful: Pests in Homes, Gardens, Landscapes, and Turf...See MoreIs Bacillus thuringiensis Organic?
Comments (11)There is Bacillus thuringiensis - Kurstaki used to control many leaf chewing insects, Bacillus thuringiensis - San Diego used to control the larva of the Colorado Potato beetle, Bacillus thuringiensis - Israelensis used to control mosquitoes, black fly, and fungus gnat larva. There are some other strains of the Bacillus thurigiensis out there but these are the most common in use today. Since these all need to be ingested by the target pest where the bacteria spores then come to life, if the gut is the right one, and then digests the target insect from the inside out all of them are acceptable for use in an organic garden. They are fairly insect specific, and will not harm beneficial insects....See MoreBT (Bacillus Thuringiensis) not allowed in California?
Comments (21)For you to continue this discussion is pointless. With every additional comment you make you are just digging yourself a deeper and deeper hole of misinformation. You simply have no idea what you are talking about and are now repeating things you have Googled out of context. I am a consulting horticulturist and hold a commercial pesticide applicator's license. I know how to do research and all the research out there on this specific topic contradicts everything you have stated. If you have anything to support these ridiculous claims, then provide a link to a reputable source to substantiate. Right now all you are doing is blowing a lot of hot air. And just because Amazon or other vendors may not ship this product into CA does not negate the fact that it is widely available in that state to any consumer who wants to use it. And not just whatever stock is remaining in store shelves. Armstrong's Garden Centers are the largest independent retail nursery chain in CA and they are currently selling it: https://shop.armstronggarden.com/garden-supply/pest-weed-fungus-control/?SubCategory=Insect__Control(scroll down to Monterey Bt RTU). And so does Home Depot and anywhere else you care to shop. btw, Kimmsr's link is over a decade old because it was posted 15 years ago to this thread that was initiated at that time. And other than a bunch of blatant misstatements, you have not added anything of value to it since then. " You’ve been harassing me all over Houzz for various reasons. " You have no idea what harassment is!! Try snooping again in my private material and you'll find out. I do not suffer fools lightly nor know-it-alls that don't and all that I have been doing is correcting your misstatements and inaccuracies. And there's been a LOT!! Most GW members will not tolerate this type of behavior. Your comments have already been removed from several threads. Keep it up and you will find yourself removed from the entire website....See Moremosquito dunks for fungus gnats on seedlings?
Comments (9)I started feeding my seedlings when they got their second set of leaves, or thereabouts. They get a dilute solution of fish emulsion and seaweed each time I water. Soap is okay on larger seedlings with good roots, especially if the aphids are particularly persistent. I don't use it on really small seedlings (I figure there's a reason that it's not labeled for use on cuttings, and I want to be cautious.) For these, a sharp spray from my squirt bottle can be enough. My understanding is that fungus gnats are attracted to the damp organic material on the surface of pots. The layer of perlite is inorganic, and it prevents the gnats from getting to the soil. It also helps with damping off. Connie...See MoreGerris2 (Joseph Delaware Zone 7a)
11 years agoJerilynnC
11 years agosbryce_gw
11 years agoequinoxequinox
11 years agoGerris2 (Joseph Delaware Zone 7a)
11 years agoboreal_wormer
11 years agoGerris2 (Joseph Delaware Zone 7a)
11 years agochickencoupe
10 years agochickencoupe
10 years agoequinoxequinox
10 years agoequinoxequinox
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10 years agochickencoupe
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10 years ago
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