Abstract: A wind tunnel device defines a cyclical tunnel to receive continuous airflow. Airflow is delivered through the tunnel to a testing region that includes a first portion carrying an arm including a spray tip configured to spray particulates in the testing region at an angle, and a second portion including an enlarged cutout region configured to receive the angled sprayed particulates. As airflow carries the angled spray particulates into the second portion, the enlarged cutout region enables the spray particulates to pass through and exit the second portion of the testing region. Analysis in the second region may be conducted through transparent walls free of openings to minimize exposure of the spray particulates to the exterior of the device. A scrubber is adapted to extract spray mist from the airflow as the airflow exits the testing region and is re-circulated through the cyclical tunnel.

Abstract: An insecticide including diatomaceous earth in a liquid mixture of water and one or more additives is provided. The diatomaceous earth may be present in an amount between at least 20 and less than 25 weight percent of the insecticide. The insecticide is applied in liquid form to surfaces for controlling the spread of insects. The liquid component of the insecticide evaporates leaving a thin layer of the dried diatomaceous earth. Insects traversing the diatomaceous earth layer are scratched and scraped by the layer, which results in water loss from the exoskeleton and eventually death.

Abstract: An adjuvant that is applied to foliage or fruit or both of a plant and comprises an effective amount ammonium sulfate, an effective amount of an alkyl polysaccharide and n effective amount of a mono, di or polysaccharide. The adjuvant is dispersed in a selected amount of water along with a selected amount of micronutrients or secondary nutrients such that when applied to foliage or fruit or both of the plant, the adjuvant causes an increase in the intake of the micronutrients or secondary nutrients applied to foliage or fruit.