Distribution of At-Planting Liquid Pesticides When Applied from New Technology Applicators

John W. Van Duyn and Kurtis D. Jones


Liquid in-furrow placed pesticides were applied at planting with three applicator types operated under a variety of speeds and output volumes. On cotton, disulfoton (Disyston 8 EC) was applied in-furrow and clomozone (Command 4 EC) herbicide induced chlorosis and thrips injury were used as indicators of applicator performance. A second test used corn and norflurazon (Zorial 80 DF) herbicide applied as an in-furrow, at planting treatment; degrees of norflurazon injury indicated applicator performance. The FMC Custom Delivery System (CDS) applicator provided superior performance when calibrated at 9.5 l/ha volume versus other applicators or the CDS calibrated according to manufacturer suggestion. Operation speed had little effect on applicator performance.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pp. 850 - 853
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998