With EPA’s recent revoking of chlorpyrifos (e.g., Lorsban, Tundra Supreme) tolerances in food/feed crops, we have lost an active ingredient that provided control of spider mites. The following products are labeled for spider mite control in soybean. Those products listing “suppression” of spider mites on the label aren’t included. As you look at this list, you will see that our “tools” are very limited. We recommend always using full labeled rates of these products and applying them with high pressure nozzles and large quantities of carrier (10+ gallons/acre). Remember that the spider mites are mostly on the underside of the foliage, so lots of water and movement of leaves will be necessary to get good control.
Insecticides/Miticides Labelled for Spider Mite Control in Indiana Soybean
| Active Ingredient
Product(s) |
Pre-Harvest
Interval (PHI) |
Comments |
abamectin
|
28 | This product is primarily used in high-value fruit and vegetable crops, but is labeled for soybean. The cost may be high. Use in soybean has been very limited. |
bifenthrin
others |
18 | This synthetic pyrethroid is unique, in that is has good activity on spider mites and their eggs. What isn’t known is how long it will control mites. Previously, bifenthrin was pre-mixed with chlorpyrifos (no longer legal to use) and the combination was effective. |
dimethoate
|
21 | This older chemistry is translocated through the foliage giving good control of spider mites, but isn’t considered long lasting. Supplies will likely be limited, as uses are limited. |
| PRE-MIXES | ||
bifenthrin + zeta-cypermethrin
|
21 | Bifenthrin is providing the mite control in this combination of synthetic pyrethroids. See comments above. |
bifenthrin + imidacloprid
others |
18 | Bifenthrin is providing the control in this pre-mix as well. Imidacloprid alone has little, to no, activity on mites. |
* Restricted Use Product
