Cotton whitefly Bemisi« /abaci (Genn.) can be managed in cucumber fields
by hand hoeing of weeds two times during the season and spraying of
chlofopyrifosmethyl (Reldan 50% EC), pirimiphos-methyl (Actellic 50% EC), or mineral
oil such as Caple-2, botinacal oil such as Jojoba oil or neem seed extract or by using
Caple-2+ micronized sulpher. The effect of B./abaci and weeds management was monitored by counting the
cotton whiteflies, which induces the new infestation in neighbour cotton fields. The
investigations were conducted at Monofiea Governorate during 2002 & 2003 cotton
seasons. The obtained results indicated thai weed management and spray with the
insecticide, Actellic 50% EC or (mineral oil, Caple-2 +micronized sutpner) in cucumber
fields had significant effect on reduction of infestion of B. tabaci in cotton fields.