Codling moth, Cydia pomonella, is a major exotic pest of walnuts, apples and pears in California. Current control practices, using the application of conventional pesticides, are costly, toxic and declining in effectivenss. Of additional concern in California is that many walnut orchards are… More

Spray drift is a significant issue facing agricultural applicators throughout the United States. Up to half of the crop production materials applied are delivered to the crop site by air. This method is highly valued by the farmer and contributes to American agricultural productivity. However,… More

Spray drift is one of the most significant issues presently facing agricultural applicators throughout the United States. In American agriculture, up to half of the crop production materials applied are delivered to the crop by air. However, material that drifts off-site is of concern. Material not… More

Spray drift is one of the most significant issues presently facing agricultural applicators. Agricultural applicators are committed to the management of chemical drift and take responsibility on a daily basis for making good decisions in the field. Material that drifts off-site is material that is… More

Spray drift from pesticide applications is a significant issue for U.S. agriculture. Spray drift, and efficacy of agrochemicals, are strongly affected by the droplet size spectra and the physical properties of the spray. Applicators have general guidance on nozzle selection but most reference tables… More

Responsible and efficient use of agrochemicals is a balance between mitigating the undesirable drift and other off-site movement and optimizing the efficacy of the applied spray. Often, these demands can be in direct conflict, e.g., very large droplets reduce drift but may run off the target or may… More