Abstract:
Results of the Search showed that the highest population density and the severity of infection
insect Tuta absoluta (Meyrik) was in the variety Randy during the month of April, reaching 5.99
larva / leaf and 37.52%, respectively. The Results for eggplant the highest was 3.98 larvae / leaf
in the variety Jawahr during the month of April.
The results indicate that the highest population density nymphs and adults predator Nesidiocoris
tennuis Reuter was 1.42 and 1.3 nymph and adult / plant respectively, in the month of April in
the variety Randy. and least 0, nymph and adult / plant during October and 0.26 nymph / plant
and 0.1 adult/ plant in the variety Shahyrh. the predatory efficiency in the case of grouped and
single of eggs and second and third larval of insect T. absoluta, the results were 23.8 and 23.2
eggs and ratio 95.3 and 93.2%, respectively, and the stage of second larval 5.7 and 8.6 larva and
ratio 22.8 and 34. 4% of the grouped and single , respectively, and the third larval 4.2 and 5.2
larva and ratio 16.8 and 20.85% of the grouped and single respectively. the comparison between
the stages shows that the trend of predator was toward the eggs increased to 70.62%.
The results showed that pesticide Proclaim was the highest killing in adults of T. absoluta were
96.35 and 76.05% when direct spray and spray the leaves (preventive spray) respectively, on
during the overlap 100% after a week of direct workshop. and 91.44% after three days and
44.86% after two weeks of the workshop .extract of Neem oil was the second after Proclaim the
killing ratio 51.36% of direct sparying and 19.62% for preventive sparying. As for the influence
of pesticides on the nymphs and adults predator N. tennuis notes that pesticide Prochlaim had
killing ratio 97.68, and 95.06%, respectively, when the direct spraying As for the intervention of up to 100% after a week spraying each of nymphs and adults. the extract of Neem oil was
influence on nymphs and adults reached 43.76 and 43.3%, respectively, and the overlap of 60.6
and 58.11%, respectively, and growth regulator Match kill 10.45% and overlap 8.46% while
bacterium Bacillus thuringiensis was 10.45% and the overlap 22.8%. the best combination to
control the insect T. absoluta is the use the extract of neem oil and extract of
Bacillusthuringiensis and after two weeks use predator as the integrated control when less
influence pesticide on predator.
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