COMPARATIVE BIOASSAY STUDIES OF SOME ACYLUREA DERIVATIVES AGAINST THE POTATO TUBER MOTH, Phthorfmaea operculella (ZELLER).

Document Type : Original Article

Authors

1 Plant Protection Department, Faculty of Agriculture, Al-Azhar Univ., Cairo, Egypt.

2 Etay EI-Baroud Agric. Res. Station, Agrlc. Res. Center, Egypt.

Abstract

Laboratory studies were conducted through bioassay technique to evaluate
the toxicity effect of some acylurea insect growth regulators on eggs, larvae, and
pupae of potato tuber moth Phthorfmaea Operculella (Zeller). Results indicated that
the tested acylureas: hexaflumuron, lufenuron, chlorfluazuron and flufenoxuron beside
the conventional insecticide profenofos, as a standard agent, proved high insecticidal
activities on P. operculelfa. Hexaflumuron and Lufenuron, however, were more toxic
against the three tested stages than chlorfluazuron and flufenoxuron. Moreover,
larvae stage. was more susceptible than pupal and egg stages with L050 values
ranged from 16.98 to 331.13, 102.33 to 582.34 and 4?8.63 to 1202.26 ppm,
respectively.