The effect of simulated rainfall on efficacy of omethoate, dimethoate and alphacypermethrin as foliar treatments for redlegged earth mite, Halotydeus destructor
1994
James, D.G. | O'Malley, K.J. (New South Wales Agriculture, Yanco (Australia). Yanco Agricultural Inst.)
The ultimate efficacy of alphacypermethrin, omethoate and dimethoate against Halotydeus destructor was not affected by simulated rainfall (7.0 mm) applied 1, 4, 8 and 16 hours post-spray. Alphacypermethrin and omethoate showed full activity after 24 hours regardless of timing of simulated rainfall, but dimethoate did not show full activity until 72 hours post-spray. Some leaf feeding damage occurred on omethoate and dimethoate treated seedlings, but rapid knockdown by alphacypermethrin prevented damage.
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