Deposits of Monocrotophos from Low-Volume and Ultra-Low-Volume Sprays¹ Applied Aerially or from Ground Equipment^2•3

Authors: HOPKINS, A. R.; TAFT, H. M.

Source: Journal of Economic Entomology, Volume 64, Number 1, February 1971 , pp. 200-204(5)

Publisher: Entomological Society of America

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Abstract:

When droplet spectra and patterns of distribution of deposits of a hexylene glycol-acetone formulation of monocrotophos applied as ultra-low-volume (<1/2 gal/ acre) and an acetone formulation of monocrotophos applied as low-volume (>1/2 but <10 gal/acre) sprays with ground equipment were determined by chemical and colorimetric analyses, the ULV spray was found to deposit more droplets and more actual monocrotophos on the protective clothing of the sprayer operator. In contrast, the 2 methods apparently delivered about equal amounts to the target area. However. more extensive colorimetric analyses showed that the ULV spray deposited more actual monocrotophos on the target area. When ULV and LV sprays were applied by fixed-wing aircraft. the ULV spray deposited more monocrotophos on the target area; the LV spray consistently delivered more monocrotophos 330-2610 ft downwind from the target area.

Document Type: Research article

Publication date: 1971-02-01

More about this publication?

Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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