| Insecticide and formulation | Stored commodity | Rate of formulation per 2.5 gallons of water (treats 1250 sq ft of surface) | Remarks |
|---|---|---|---|
| Bacillus thuringiensis (Bt) (Biobit, Dipel, etc.) |
Grains, soybeans, sunflower seed, crop seeds, condimental seeds, spices, herbs, birdseed, popcorn, peanuts | Rate depends on product and formulation | Agitation is important. Other products are available. Read and follow label directions carefully. Formulations vary greatly. Does not control weevils, lesser grain borer, or any of the bran bugs. |
| Chloropyrifos-methyl and cyfluthrin (Storcide) |
Stored food, feed, and oil grains | 1.69 fl oz/1 gal water Apply 1 gal diluted spray/1000 sq ft | Bin applications should only be applied from outside the bin. Only downward spray is permitted. Do not enter until sprays are dried. Applications should be made only after bins and equipment have been thoroughly cleaned. |
| Chlorpyrifos-methyl (Reldan 4E) |
Empty-bin treatment | 0.5 pt/3.0 gal spray | Do not use in bins that will be used to store corn or soybeans. May not provide control of lesser grain borer. Newer labels require treatment from outside the bin. NOTE: Reldan 4E will be sold by Gustafson until 12/31/04 to authorized distributors; distributors can sell until 12/31/05, and treated grain will be given the opportunity to move through grain channels until 2009-2010. |
| Cyfluthrin or beta-cyfluthrin (Tempo 20WP, Tempo 2.0, Tempo SC Ultra, Tempo Ultra WP) |
Empty-bin treatment | Rate depends on product and formulation. See product label for mixing directions | Treat storage facilities and allow to dry before filling with product. Do not treat grain with Tempo and do not treat bins to be used for storing soybeans. |
| Diatomaceous earth (DE) (Insecto) |
Empty-bin treatment | 1.0 lb/1,000 sq ft | Can be irritating to workers and abrasive to equipment. |
| Methoprene (Diacon II) |
Warehouses, silos, storage bins or other stored commodity areas | 1.0 ml/1000 sq. ft. or 3 ml/10.000 cu. ft. | Methoprene does not kill existing populations. Treat existing insect populations with an adulticide before applying methoprene for residual protection. Methoprene prevents insect reproduction. |
