Title: Field Studies in the Control of Orchard Mites in 1957
Abstract:The effectiveness of early-season sprays against the European red mite (Panonychus ulmi (Koch)) and of summer sprays against both this mite and two-spotted spider mite (Tetranychus telarius (L.)) on a...The effectiveness of early-season sprays against the European red mite (Panonychus ulmi (Koch)) and of summer sprays against both this mite and two-spotted spider mite (Tetranychus telarius (L.)) on apples was studied. An oil at the green-tip stage (March 26) or one to three applications from April 19 (bud-pink) to May 20 (second cover) of Tedion, Genite, Chlorbenside, demeton, Thimet, ovex (both the standard and an experimental (Dow M-928) formulation), Chipman R-6199, schradan, or p-chlorophenyl benzene sulfonate (Fenson) were effective for at least 60 days after petal fall. A dormant oil-dinitrocresol spray was less effective. Single applications of Kelthane, Hercules AC-528 ad Guthion early in July gave less than one mite per leaf, and of demeton, thimet, Trithion, Aramite, Chipman R-6199, Chlorobenzilate, and ethion (Nialate) less than four mites per leaf after 4 weeks. Ovex in both formulations was not effective so long as the other materials, but two applications of the standard formulation gave excellent control. None of the materials injured fruit or foliage.Read More
Publication Year: 1958
Publication Date: 1958-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 5
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