Inputs:
No. Leaves Sampled:
No. Leaves Infested:
Compute conversion table
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Binomial sampling table:
Help window:
Estimated mean density of spider mites
from leaf samples:
Total #
leaves sampled
Leaves with more
than 5 mites/leaf
Estimated
mean #/leaf
Sample size: the number of leaves sampled within the field. Samples consist randomly selecting sets of 5 leaves from at least 9 locations throughout the field. For this binomial sampling calculator, track only the number of leaves with 5 or more mites present. This allows for much more rapid sampling - it is much quicker to scan a leaf for colonies of 5 or more mites than to search all leaf surfaces for any single (stray) mites. 5 or more mites counts as infested. We recommend counting spider mite eggs and nymphs as well as adults
Integrated Pest Management on Peppermint:
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