The influence of spray droplet characteristics on the efficacy of permethrin against the diamondback moth Plutella xylostella: The effect of drop size and concentration on the potency of ulv- and ec-based residual deposits

• Main Authors: Omar, Dzolkhifli, Matthews, Graham A., Ford, Martyn G., Salt, David W.
• Format: Article
• Published: Wiley 1991
• Online Access: http://psasir.upm.edu.my/id/eprint/111898/; https://onlinelibrary.wiley.com/doi/10.1002/ps.2780320406

The effect of droplet diameter (36-274 μm) and concentration (10-400 g litre−1) of permethrin on the knockdown and mortality of 2nd-instar Plutella xylostella larvae was investigated. Larvae were placed on brussels sprout leaf discs treated with residual deposits of permethrin applied as ULV or emul...