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Spider mites

Herbangardener671
Herbangardener671started grow question 7 months ago
What to do if I’m infested with spider mites. I’ve sprayed with insecticide soap and webbing still showing up. Also I cleaned before start this grow how do they keep showing up? Could it come from the soil? Are the buds still ok to grow and harvest
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Buds. Other
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Sciolistic_Steve
Sciolistic_Steveanswered grow question 7 months ago
if you can wait 2 weeks, go get some concentrated pyrthrinn and mix up a 16oz bottle and go to town on it.
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Sciolistic_Steve
Sciolistic_Steveanswered grow question 7 months ago
if you are going to spray on a flowering plant, might as well use something that is effective. pyrethrines have a half-life of 2-3 days? If you have 15+ days left, vast majority would be gone. This would probably be dafe. "In the presence of sunlight, pyrethrin 1, a component of pyrethrins, breaks down rapidly in water and on soil and plant surfaces. Half-lives are 11.8 hours in water and 12.9 hours on soil surfaces. On potato and tomato leaves, less than 3% remained after 5 days. Pyrethrins do not readily spread within plants." - http://npic.orst.edu/factsheets/pyrethrins.html So, 3% isn't enough, but shows how fast it breaks down. 2 weeks would probably be safe... safer than neem oil that is 2-4 day half life - http://npic.orst.edu/factsheets/neemgen.html lets assume 2 days half life over 2 weeks, which simplified is .5^7 = all but .78125% would be there... not saying this is safe. some things will be danagerous at very low levels, especially things that are typically effective at killing pests. the pyrethrins would be.. lets go with 12 hours, so .5^28 over 2 weeks is .0000003725% remaining.
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Stork
Storkanswered grow question 7 months ago
Clean the leaves with a wet tissue, shower them with water, or use a hand vacuum cleaner. Just be cautious not to rip the leaves 🍻
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Roberts
Robertsanswered grow question 7 months ago
They likely hitched a ride in on you or a pet. Flowering is a hard time to treat as it can ruined the taste of bud. Do not do stuff outside prior to attending your plants will greatly reduce further issues. To treat your plants you need to cover every inch when treating. Then repeat every few days. If you were in vegging I would recommend neem oil treatments for a week. That is not the case. You can try to rinse them off with just water, but you need to provided extra air to get colas dry and keep humidity low. Plus keep plant out of light when wet. Then once grow is done treatments to grow space and sterilization of space and equipment used will rid you of them. Then don't bring in clones or plants from other places. Don't do yard work especially before handling plants. That was how I had gotten them last.
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