Impact of the egg parasite Platytelenomus hylas Nixon on the population of the sugar cane borer, Sesamia cretica led., in Egypt
1983
Hafez, M. | Fayed, Y.H. (Ministry of Agriculture, Cairo (Egypt). Plant Protection Research Inst.) | El-Kifl, A.H.
The economic importance of the egg parasite Platytelenomus hylas Nixon on Sesamia cretica Led. was assessed in Egypt, during the period 1986-1971. It was found that in most cases almost all natural mortality of the borer eggs was caused by parasitism by P. hylas. The rate of parasitism starts very low at the beginning of the season, during April and May It reaches a peak of accumulated parasitism late in the season during September and October when the parasite starts to hibernate within the host eggs. During the four years of work the highest rates of parasitism ranged between 92% and 95% in the autumn. At certain localities, these rates reached as 100% during August-October.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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