Initial and residual effect of four fungal insecticides i.e. Bio-sect, Bio-cansa,
Bic-far and Bio-lIy and seven chemical insecticides, i.e. Aldara, Quick, Marshal,
Mosblane, Admire, Admiral and Necestar were Investigated against larvae of sugar
beet fly Pegomia. mixta (ViiI.) and sugar beet tortoise beetle, Cassida yillala (ViiI.)
and their associated predators, rove beetle, PaedefU$ alfierii. Koch and lacewing,
Chrysoperla carena, Schn. In case of controlling P. mixta, the initial activity of Aktara was higher than
tile other tested compounds. While, the initlal toxicities of Bio-cansa and Bio-sect
were the least. Residual activities of the tested Insecticides showed that Aktara,
Quick, Marshal and Mosbalane were the most potent compounds, while Necestar and
Blo-fly were less active. In case of C. Yillala, the Initial activity of Bia-sect was higher than the other
tested compounds. While, the Initial toxidties of Admire and Admiral were the least.
Residual action activities of the tested insecticides showed that Mosblane. Aktara and
Marshal were the most potent compounds, while fungal compounds Bia-sect and 8io-
fly were Jess active. On the other hand, the juvenile hormone mimic, Admiral was very
poor In this respect. 80th Quick and Mosblane were the most serious application against
predator, P. 8lfierii. On the other hand, Admiral, Admire and Necestar were safe to
the considered predator. Quicle: and Marshal were highly toxlc to lacewings C. camea,
while admiral and Bio-sect were safe to the predator.