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IBRAHIM, G., METWALLY, A., EL-HALAWANY, A., EL-SAYED, K. (2010). EVALUATING THE EFFICIENCY OF DIFFERENT LEVELS OF NEOSEIULUS CALIFORNICUS (MC GREGOR) RELEASED FOR CONTROLLING THE SPIDER MITE TETRANYCHUS URTICAE KOCH AND EUROPEAN RED MITE PANONYCHUS ULNI(KOCH) ON YOUNG APPLE TREES. Egyptian Journal of Agricultural Research, 88(2), 451-463. doi: 10.21608/ejar.2010.186972
GAMAL EL-DIN A. IBRAHIM; ABDEL-SATAR M. METWALLY; ASHRAF S. EL-HALAWANY; KAREM M. EL-SAYED. "EVALUATING THE EFFICIENCY OF DIFFERENT LEVELS OF NEOSEIULUS CALIFORNICUS (MC GREGOR) RELEASED FOR CONTROLLING THE SPIDER MITE TETRANYCHUS URTICAE KOCH AND EUROPEAN RED MITE PANONYCHUS ULNI(KOCH) ON YOUNG APPLE TREES". Egyptian Journal of Agricultural Research, 88, 2, 2010, 451-463. doi: 10.21608/ejar.2010.186972
IBRAHIM, G., METWALLY, A., EL-HALAWANY, A., EL-SAYED, K. (2010). 'EVALUATING THE EFFICIENCY OF DIFFERENT LEVELS OF NEOSEIULUS CALIFORNICUS (MC GREGOR) RELEASED FOR CONTROLLING THE SPIDER MITE TETRANYCHUS URTICAE KOCH AND EUROPEAN RED MITE PANONYCHUS ULNI(KOCH) ON YOUNG APPLE TREES', Egyptian Journal of Agricultural Research, 88(2), pp. 451-463. doi: 10.21608/ejar.2010.186972
IBRAHIM, G., METWALLY, A., EL-HALAWANY, A., EL-SAYED, K. EVALUATING THE EFFICIENCY OF DIFFERENT LEVELS OF NEOSEIULUS CALIFORNICUS (MC GREGOR) RELEASED FOR CONTROLLING THE SPIDER MITE TETRANYCHUS URTICAE KOCH AND EUROPEAN RED MITE PANONYCHUS ULNI(KOCH) ON YOUNG APPLE TREES. Egyptian Journal of Agricultural Research, 2010; 88(2): 451-463. doi: 10.21608/ejar.2010.186972

EVALUATING THE EFFICIENCY OF DIFFERENT LEVELS OF NEOSEIULUS CALIFORNICUS (MC GREGOR) RELEASED FOR CONTROLLING THE SPIDER MITE TETRANYCHUS URTICAE KOCH AND EUROPEAN RED MITE PANONYCHUS ULNI(KOCH) ON YOUNG APPLE TREES

Article 9, Volume 88, Issue 2, July 2010, Page 451-463  XML PDF (4.12 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2010.186972
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Authors
GAMAL EL-DIN A. IBRAHIM1; ABDEL-SATAR M. METWALLY2; ASHRAF S. EL-HALAWANY1; KAREM M. EL-SAYED1
1Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
2Faculty of Agriculture, El-Azhar University, Cairo, Egypt.
Abstract
Evaluating the efficiency of release different levels of the predatory mite N. ca/ifamicus (McGregor) for controlling of T urticae and P. uImi. The predatory individuals were 10, 20 and 30/ young apple. The predatory mite N. califomicus released on young apple for controlling T urticae in 2nd April 2006 when spider mite T. urticae infestation reached about 3.73,3.06 and 4 individuals/ leaf, while the predatory mite released for controlling P. ulmi in 10th April 2006 when its infestation reached about 3, 2.93 and 3.23 individuals I leaf at levels at the same levels of predators/ apple tree, respectively. After release the predatory mite N. californkus for control the two spotted spider mite T utticael The percent of redaction was 54.37, 60.81 and 66.89% at levels 10, 20 and 30 predators/ apple trees after four months of release, while after release the predatory mite for control P ulmi on apple tree the percent of redaction was 64.35, 70.20. and 77.66% at the same levels after four months of release.
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