Apple, Mid Season Acaricide Test, 1985

A randomized complete block design was used. Treatments consisted of single trees in each of 4 blocks. Trees were selected which had existent mite populations. These trees were sampled and numbers of mite per leaf determined. Trees were then divided into 4 blocks based on similarity of counts. Each...

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Bibliographic Details
Published in:Insecticide and acaricide tests 1986-01, Vol.11 (1), p.45-46
Main Authors: Howitt, Angus J., Hays, Alan R.
Format: Article
Language:English
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Summary:A randomized complete block design was used. Treatments consisted of single trees in each of 4 blocks. Trees were selected which had existent mite populations. These trees were sampled and numbers of mite per leaf determined. Trees were then divided into 4 blocks based on similarity of counts. Each treatment was then randomly assigned to a tree in each block (blocked by precount). Evaluations were by the following: From each tree 50 leaves were selected at random. Leaves were brushed in a mite brushing machine and resulting plates examined for ERM. Numbers were recorded as counts per 8 sections of the plate and converted to mites per leaf. Materials were applied in 138 gpa on 27 Jul.
ISSN:0276-3656
DOI:10.1093/iat/11.1.45