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IBRAHIM, G. (2000). PRELIMINARY STUDIES ON THE RELEASE OF THE PREDATORY MITE PHYTOSE1ULUS MACROPIL1S (BANKS) ON STRAWBERRY PLANTS TO CONTROL TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE-PHYTOSEIIDAE).. Egyptian Journal of Agricultural Research, 78(4), 1517-1523. doi: 10.21608/ejar.2000.399714
GAMAL A. IBRAHIM. "PRELIMINARY STUDIES ON THE RELEASE OF THE PREDATORY MITE PHYTOSE1ULUS MACROPIL1S (BANKS) ON STRAWBERRY PLANTS TO CONTROL TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE-PHYTOSEIIDAE).". Egyptian Journal of Agricultural Research, 78, 4, 2000, 1517-1523. doi: 10.21608/ejar.2000.399714
IBRAHIM, G. (2000). 'PRELIMINARY STUDIES ON THE RELEASE OF THE PREDATORY MITE PHYTOSE1ULUS MACROPIL1S (BANKS) ON STRAWBERRY PLANTS TO CONTROL TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE-PHYTOSEIIDAE).', Egyptian Journal of Agricultural Research, 78(4), pp. 1517-1523. doi: 10.21608/ejar.2000.399714
IBRAHIM, G. PRELIMINARY STUDIES ON THE RELEASE OF THE PREDATORY MITE PHYTOSE1ULUS MACROPIL1S (BANKS) ON STRAWBERRY PLANTS TO CONTROL TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE-PHYTOSEIIDAE).. Egyptian Journal of Agricultural Research, 2000; 78(4): 1517-1523. doi: 10.21608/ejar.2000.399714

PRELIMINARY STUDIES ON THE RELEASE OF THE PREDATORY MITE PHYTOSE1ULUS MACROPIL1S (BANKS) ON STRAWBERRY PLANTS TO CONTROL TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE-PHYTOSEIIDAE).

Article 7, Volume 78, Issue 4, December 2000, Page 1517-1523  XML PDF (1.67 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2000.399714
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Author
GAMAL A. IBRAHIM
Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
in a field study, the predatory mite, Phytoseiulus macropilis (Banks) was released two, four and six times at a rate of 10 individuals/ bit to control the two-spotted spider mite, Tetranychus urticae Koch in about 175 m2 of a commercial strawberry field at El-Oalyobia Governo­rate. The spider mite population was reduced at all numbers of predator release; the decrease had a positive relationship with number of releas­es. The mite reduction was slightly few after the first release but in­creased gradually after every predator release. It averaged 41, 48 and 35% in the first post-count, but reached 92, 95 and 97% in the last in­spection in treatments that received two, four and six releases, respec­tively. It could be advisable to release this predator species when T.urticae population is at a low density to allow a suitable chance for the predator to play its role successfully. The associated weeds (mainly blackberry) seemed to be important as a good shelter for the predator, from which it could disperse to adjacent plants or next crop.
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