Treating Spyder Mites In GH.....
gltrap54
5 years ago
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gltrap54
5 years agoRelated Discussions
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Comments (16)Oh yes-sir-ee, I agree, bringing a new plant home, no matter how 'reputable' the nursery is, is one way bugs invite themselves in our homes.. I never ever saw scale..it was only after bringing in an Olive tree did those suckers feast on my plants..mostly neighboring plants such as citrus..the Olive had hundreds and I mean hundreds of scale..Well, plucking was impossible because of the huge number..Thankfully, a woman I talk to who owns a nursery told me they use Fish Emulsion, (foliar) to rid/prevent scale..it was worth a try..I sprayed not only the Olive, but every plant in the room..A couple days later, no signs of scale..the weird thing was, I dont know where they went, but none were visable, and if anyone here has seen scale, you know they're unlike mites, in fact, quite visible.. Whenever I buy/order plants, I inspect..I'm guilty of placing new plants among other plants, but there's no room to isolate, since every spot in our house is plant-filled. :) But I have learned to inspect leaves and soil..Some insects, particularly mealy, are hard to find, especially if they're in an egg stage..I think most nureries spray plants, so adults die off, but once eggs hatch, voila, we find them.. Every so often I check read through the Hoya forum..Some people swear crushed scented geranium keep mealy away..I grow geranium, unscented, though geranium have a smell of their own..wonder if it really works.. I set out most plants in summer, but not all..many stay inside..Philos, AV's, Calathea, Hoyas, Orchids, Begonias are amongh those who live indoors during summer..All cacti and succulents, hibs, gardenias, scheffs, citrus, coffee, Christas/Easter/Thanksgiving cactus go out.. Plants in or out are insect-free..Only one time did I have a whitefly problem, the source was a hardy Hydrangea..yellow sticky traps cured the problem, and it was a problem.. Some annual/perrenial plants are known to attract insects, so if possible, keep house plants far away from hardy outdoor greens..I don't have that option, but since I found the source of whitefly, I spray the Hygrangea with organic stuff, (my concoction) so far so good.. IMO, I doubt plants attract bugs if kept indoors during summer..I feel being outdoors is a vacation for plants..LOL..fresh air, sun, and humidity. Access to a hose instead of misting, which really creates a cloud of humidity..Plants such as cactus, succulent, citrus, and hibs love sun, so being outdoors gives them a chance to absorb much more light then if kept inside..So, whether or not plants go out or kept in is optional..there's no written rule our plants need to go out..To each his/her own..But as long as I'm capable of lugging plants outside, they'll have the chance to enjoy a 'vacation.' Toni...See MoreGH pest control
Comments (40)You're not going to be able to totally get rid of your bugs until you've had several hard freezes outside. The ones that are outside are going to get back in. The best you can hope for now is to keep the levels down. The fogger machine works because the bugs can't get away from it. When you coat the tops and bottoms of the leaves at the same time and all the surfaces on the bugs get coated with something that either penetrates their bodies or smothers them, it's just not good news for them. Of course you have to keep at it every few days because ones that are in egg stages still hatch and have to be killed too. No--I didn't get the cheapest fogger they had because I needed higher volume to fill my larger greenhouses. I didn't see what size your greenhouses are. Maybe a smaller one would work. Another plus is that you don't have to be in there at all while you fog, always good when working with chemicals. Your most infested plants, you should get them out of the greenhouse. If destroying them is not an option, cut them back, and pull all the leaves off of them and give them a dormant oil spray like for a fruit tree and then put them back. You need a good coverage with any spray, but especially a dormant oil spray. It works by smothering pests and eggs and it will damage soft stemmed plants, but it sounds like they're damaged anyway. It's a last resort option. Rotate your sprays, different brands of sprays work the same way. For example some attack the nervous system. If you use a spray that attacks the nervous system 3-4 times in a row, even if it's a different brand, then it'll quit working as the bugs adapt. I put a link on there for you to a chart, the chart starts on page 3 of the link. What I did was to print out the chart and then take it to my bug killers and look at the chemicals on the bug killers, then when you find what class they're in, write the class on it with a big magic marker number on the front. Then you rotate your sprays according to action and class. Use a calendar to schedule and rotate your sprays. Write down what you used, what strength you mixed it and what date. Insecticidal soap is a good one to use in between sprays if you can't remember what you used last time because it's not one they can get used to at all, but good coverage is the whole key, so therefore the fogger really helps. I've been doing this for a living now for 3-4 years and I had terrible trouble with bugs the first couple of years until I got the fogger and got my spray rotations happening. Yes, it will cause the humidity to go up, but you can always heat and vent it back out. Just don't water too much either. It sounds like you also have problems with high humidity, overcrowding and possibly overwatering. Good luck, and if you need any support, you can e-mail me, too. Here is a link that might be useful: insecticides modes of action...See MoreAnts in the GH - Help!!!
Comments (13)Nope. Yerba Mate ain't the answer! Ants *like* to eat that plant! :::sigh::: Anybody got any suggestions on how to *deter* ants (as opposed to offering them Tasty Treats)??? If not, I'll hafta break out the Ant Bait and kill 'em (and I'm okay with that, but I'd prefer a less drastic approach!) Thanx! -N...See MoreCure for spider mites?????
Comments (43)AS works great for SM. Its the broad mites now that I am after. Leaf curl and stem die back. When it is sprayed the leaves start to go normal but will go back to a curl on new leaves. Grrrrrrrrrr. I get tired of spraying. If I do nothing I can track their progression across the yard. They also are wind riders. I am going to try some horticultural oils mixed in between AS and spray everything including the neighbors yard. That is where they are coming from. I am a miteaphobe and have 0 tolerance for them. "- No highly effective miticides appear to be available, with horticultural oil the primary material present. Some combination products with acephate contain fenbutatin-oxide and can be used on outdoor ornamentals. A bit of dicofol/Kelthane remains on shelves. However, overall there remains a paucity of effective materials to control mites" "- A new systemic insecticide, dinotefuran, was found for the first time in two products. This is only the second neonicotinoid insecticide sold in this market, following imidacloprid" Imidacloprid will wack everything else but mites and good. Neonicotinoid, we banned nicotine but now make synthetic. Go figure. It is very good even on mealy bugs,and white flies so I hear. Now we are down to Oils or coatings AS and the new family of mectins the mother of the current $300.00 a pint miticides. Now that is way too expensive for commercial ventures and farming. The item designed as a wormer is the current hope on the horizon. The mectin patent has expired and now is generic. The Avids and Forbids are patented. Be so very careful if you use them. They have the capability to wipe out entire colonies of bee's and such. It is not a contact killer. Anything that touches can transmit enough of a dosage to kill an entire colony by casual contact over time. My vote is with the mechanical barriers and small amounts of oil. The oils are supposed to work on the soft body insects like mealy bugs and white flies. I have never used oil but it is already purchased. Any of you with oil experience fill me in. I am going by pure research. I would like to try some oil with AS in our winter months to see if it will combined work on broad mites....See Moregltrap54
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