When To Apply Zeal —Mite Thresholds Apply Zeal up to the mite threshold where 15% of leaves sampled have a mite present (adults, nymphs and/or eggs). However, threshold can be adjusted upward 5–10% if populations are not rapidly expanding due to cool weather and/or populations are not rapidly expanding due to abundance of mite predators. Note: Hot temperatures cause mite population to explode (quickly exceeding threshold).
Mite
0–14% Threshold Too Early—Wait
15% Threshold Apply Zeal
25+% Threshold Too Late—Don’t Apply Zeal
Zeal —How To Maximize Residual Spray based on threshold (not calendar or crop stage)
Early-season broad spectrum insecticides will kill beneficials and shorten residual control Broad spectrum NOW (navel orangeworm) insecticides will kill beneficials and shorten residual control Translaminar activity is limited in older, hardened, dusty and stressed leaves Zeal Best Management Practices Allow Zeal at least 10–14 days to reduce mite populations below threshold levels before deciding to spray the field again with another miticide Coverage is essential — Spray field at calibrated speed. Calibrated at 2.5 mph, sprayed at 3.5 mph cuts rate 29%.
— Most miticides are not systemic, small trees outgrow treatments — Avoid adjuvants known to inhibit translaminar activity, such as sticker-type — Every other row applications do not provide acceptable coverage
Spray Distribution Study
Products That Work, From People Who Care ® | valent.com | 800-6-VALENT (682-5368) Always read and follow label instructions. Zeal and Products That Work, From People Who Care are registered trademarks of Valent U.S.A. LLC. ©2018 Valent U.S.A. LLC. All rights reserved. Printed in the U.S.A. 2018-ZEA-8010 PM 3/18
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