Sulfur is an industry go to (talking real horticulturalists here)...It works almost as good as Abamectin. Problem is too much Sulfur makes the plant harsh smoke. 1 treatment is like enough S for the entire crop and you need to do something like 5-10. High levels of S will increase acidity and leaching which is "bad" for the environment in some peoples eyes.
Careful with all this. I swear what I thought was broad mite wasn't mite at all as I am now getting better treatment not even spraying or doing anything that would directly effect a mite of any kind. If it is a mite, its an eriophyd that is dependent on some kind of microbe/virus infection and my treatments are combating the infection and not the mite.
Predatory mites only work in closed canopy. They don't perform well on full buds with 12hrs of light. You need continuous release. Looks like its swirskii for that atm. I've released multiple very high numbers (1000 per 100sqft) with out proper control.
The fungi will taint your crop with oil. You must spray continuously every 3 days to keep up with mite. It has about the kill rate of insecticidal soap. Maybe spray fungi then soap then fungi then soap then fungi then soap then water. The fungi reduce predator efficacy by direct contact and ingestion of infected prey.
If you want to feed facultivative mite predators, corn pollen.
EO sprays tend to create spray toxicity issues. They are about as good as straight soap sprays.
Originally Posted by Avinash.miles
timm, have you tried essential oils for killing broads/russets.?? have you tried wettably sulfur sprays (i used garden fungicide from safer brand) i haven't used oils myself against bms'/hrms (but have been killing all other pests with essenstial oils), but i know people who have and they report that oil mixes can wipe out broads...
just saying, don't go all "nothing organic will work" unless you have tried all the organic options.... not just heat and spinosad available in the organic arsenal. also, i DID use wettable sulfur spray to kill HRM's when i had them, and that IS organic...
edit: also pfr & met are biological/organic right?