FIELD APPLICATION OF ENTOMOPATHOGENIC NEMATODES AGAINST ZEUZERA PYRINA (L.) AND PAROPTA PARADOXA (H. SCHAEFF) IN EGYPT

Document Type : Research articles.

Author

Plant Protection Research Institute

Abstract

Field application of entomopathogenic nematodes
(
Heterorhabditis taysariiy (Ht), Heterorhabditis sp (TWF),
Heterorhabditis bacteriophora (HP88) and Steinernema carpocapsae
(Sc)) against fruit tree borers were performed in 2008 seasons in
different governorate. Results showed that the method of use of
nematodes soaked cotton plugs gave the best results, followed by the
injection method and spray method against
Zeuzera pyrina on apple
trees. When, controlling
Paropta paradoxa the injection method was
better than the spraying method of the entomopathogenic nematodes on
pear trees. Added the starch polymer to nematode suspension increased
the infectivity of the three tested nematode species in both methods of
(spray and injection) against
Z. pyrina. Results showed that the addition
of polymerized starch for the three nematodes tested gave high
significant increase amounted 81.01%, while using the nematode alone
gave 65.4%.


Keywords