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Journal of Plant Protection and Pathology
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Shaalan, H. (2016). POPULATION DYNAMICS AND SOME CHEMICAL CONTROL TACTICS OF Thrips tabaci, L. AND Tetranychus urticae, KOCH ON CUCUMBER PLANTS AND YIELDS.. Journal of Plant Protection and Pathology, 7(2), 149-155. doi: 10.21608/jppp.2016.50108
H. S. Shaalan. "POPULATION DYNAMICS AND SOME CHEMICAL CONTROL TACTICS OF Thrips tabaci, L. AND Tetranychus urticae, KOCH ON CUCUMBER PLANTS AND YIELDS.". Journal of Plant Protection and Pathology, 7, 2, 2016, 149-155. doi: 10.21608/jppp.2016.50108
Shaalan, H. (2016). 'POPULATION DYNAMICS AND SOME CHEMICAL CONTROL TACTICS OF Thrips tabaci, L. AND Tetranychus urticae, KOCH ON CUCUMBER PLANTS AND YIELDS.', Journal of Plant Protection and Pathology, 7(2), pp. 149-155. doi: 10.21608/jppp.2016.50108
Shaalan, H. POPULATION DYNAMICS AND SOME CHEMICAL CONTROL TACTICS OF Thrips tabaci, L. AND Tetranychus urticae, KOCH ON CUCUMBER PLANTS AND YIELDS.. Journal of Plant Protection and Pathology, 2016; 7(2): 149-155. doi: 10.21608/jppp.2016.50108

POPULATION DYNAMICS AND SOME CHEMICAL CONTROL TACTICS OF Thrips tabaci, L. AND Tetranychus urticae, KOCH ON CUCUMBER PLANTS AND YIELDS.

Article 8, Volume 7, Issue 2, February 2016, Page 149-155  XML PDF (651.09 K)
Document Type: Original Article
DOI: 10.21608/jppp.2016.50108
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Author
H. S. Shaalan
Plant Protection Research Institute, (A.R.C), Giza, Egypt
Abstract
Field experiments were carried out at Saqqara village in Giza Governorate during two successive seasons, 2013 and 2014 to detect the suitable applications for controlling Thrips tabaci,L and Tetranychus urticae, Koch on cucumber plants and resultant yield and the population fluctuation of the two pests. The three tested treatments were Fenpyroximate 5% SC(acaricide) & Ethoxazole 5% SC(acaricide) with the recommended rate 50 cm and 25 cm / 100 liters, respectively, Thiamethoxam 25% WG(insecticide) & Imidacloprid 20% SC(insecticide) with the recommended rate 20 gram and 50 cm/ 100 liters, respectively and Chlorfenapyr 36% SC(insecticide and acaricide) with the recommended rate 25 cm / 100 liters compared with the untreated cucumber plants. Results indicated that the population dynamics of T. urticae during two successive seasons was concentrated between the period extended from the fourth to the seventh inspection. There were not significant differences between the population of T. urticae during the two successive seasons, 2013 and 2014.
Results and their statistical analysis showed clearly that all treatments significantly decreased the population density of two tested pests and increased the cucumber yield comparing with control treatment. Chlorfenapyr though proved to be superior in performance for management of T. tabaci and T. urticae, thus the third treatment could be used as alternate candidate for the management of these pests.
Data indicated that the highest cucumber fruit yield was obtained from cucumber plots treated with the third treatment (Chlorfenapyr) (184kg. no. of production/100 plants), followed by the first treatment (169 kg) and plots treated with the second treatment (158kg). The highest net return LE (11005 LE/ fed) was recorded in plots treated with third treatment, followed by first treatment (9800 LE/ fed), then the second treatment (8525 LE/ fed), with compared the income return from treatments and control, the highest income (4380 LE/ fed) was obtained from the third treatment (T3), then the lowest income (1900 LE/ fed) was recorded with plots treated by the second treatment (T2).
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