Biological control of tetranychus urticae koch using the phytoseiid mite, phytoseuilus persimilis a.-h. on apple seedlings
2010
Metwally, A.M. | Ibrahim, G.A. | El-Halawany, A.S.H.
. The predator mite P. persimillis A.- H. was released in April 5, 2003 and July 24, 2003 at levels (10, 20 and 30 adults per apple seedling). At level of infestation with two-spotted spider mite T. urticae with averaged 3.0, 3.5 and 3.3 per leaf, after seven months from first and second release the percent reduction of the mite pest averaged 61.95, 80.68 and 88.63%, respectively
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