1996-1997 New England Apple Pest Management Guide


SPRAY MIXTURE INCOMPATIBILITY

This information is offered only as a general guide, and does not apply to pesticidal efficacy of mixtures. Read the label for specific situations. Compatibilities indicated may be changed by certain adjuvants, different formulations, combinations of more than two materials, and environmental factors such as temperature and humidity.

When potential compatibility is indicated, minimum agitation should be provided in all cases.

Designations apply to at least one formulation of specified products. In cases where compatibility differs among formulations, the most conservative designation has been given. Defer to respective labels in all cases.

Unless otherwise noted on the label, use soon after mixing, preferably in systems with continuous agitation.

Physical compatibility: although there may be no chemical incompatibility between the active ingredients of two given pesticides, some formulations of these products may not be physically compatible. This is particularly true when mixing at high concentrations and when mixing wettable powders with emulsifiable concentrates. Prepare a small batch of a proposed mixture before making tank combinations, to check for unacceptable physical reactions.

1 = Combination of Morestan with EC formulations of other products may result in phytotoxicity.

2 = Ratings apply only if mixing directions on Nova label are carefully followed to avoid incompatibility between water soluble packet and other materials. This caution may also apply to other products packaged in water soluble bags (WSB formulations).

*Adapted from: 1993 Pest Management Recommendations for Commercial Tree-Fruit Production, Cornell Cooperative Extension, by W.F. Wilcox, A.M. Agnello, J. Kovach, and W.C. Stiles; with additional information from Fruit Spraying Calendar, 1993, Cooperative Extension Service, Michigan State University, edited by J.W. Johnson, J. Hull, and A.L. Jones.; 1996-1997 Pennsylvania Tree Fruit Production Guide, Pennsylvania State University, E.G. Rajotte, coordinator; and from pesticide manufacturer information.

On to sprayer calibration


1996-1997 New England Apple Pest Management Guide