Five insecticides were evaluated for controlling of almond seed wasp,
Eurytoma amygdali, the study was carried out at Al Fhaila – Homs. The
insecticides were Concord super, Karate zeon, Zenith, Lentrek and Desis
50.The results indicated that insec
ticides affected significantly the infestation,
Concord super caused the lowest infestation (2.66%) compared with the control
(39%) in (2009). In 2010, Karate zeon caused the lowest infestation (2.66%)
where it was (40%) in the control. The economic analysis indicated that
Concord super was the best because of its lowest cost and highest saving money
in secticide (5832.2) Sp., but Karate zeon was the least money-saving insechcide
(5525.4) Sp.
The toxic effect of some insecticides (Amitraz, Amitraz + summer oil,
Abamectin, Abamectin + summer oil) and plant extracts (Melia azedarach L.,
M. azedarach + summer oil, Schinus molle L., S. molle + summer oil) were
tested on the predator of pea
r psyllae insect Anthocoris nemoralis F. and the
parasite Trechnites psyllae R. in the Mokhtaria research station, agricultural
research center at Homs during the season 2011.
The side-effect of six insecticides get to be used on apple trees in Syria were
tested on the adults of the egg parasitoid Trichogramma cacoeciae Marchal.
Using the exposure of adults to treatment glass plates for 24 hours. The highest
recommended
field application rate was applied. The classification of the
International Organization for Biological Control for insecticides effect in
adults mortality or reducing of parasitism was used (1, Harmless; 2, slightly
harmful; 3, moderately harmful; 4, harmless). This study showed that
Cloropyrifos, Deltamethrin and Acetamiprid and caused adults mortality
100%, and classified as harmful insecticides (glass 4) according to IOBC. While
Diflubenzuron, lufenuron and fenoxycarb were slightly harmful in adults
mortality (class 2) according to IOBC. Whereas was harmful to larval stage
only, and moderately harmful to the egg and pupae. Acetamiprid was also
harmful to the egg stage and moderately harmful to larvae and pupae. Whereas
the insect growth regulator insecticides and the insect growth inhibitors
(Diflubenzuron, Lufenuron and Fenoxycarb) caused reducing in parasitism
(82.05, 56.03, 94.40)% for the three insecticides respectively, and classified
(class 2, 2, 3) respectively according IOBC category compared with the
parasitism in control 89.25%, also the latest three insecticides reduced
significantly the longevity of adults which were survived after the exposure to
treatment class plate compared with the control.
