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Field Investigation On The Efficacy Of Neem Azal®-T/S Against Olive Buds
Moth Margaronia Unionalis (Hbn.) (Lepidoptera: Pyralidae) In Olive
Nurseries, Aleppo, Syria
Mahmoud S. Lababidi
Department of Plant Protection, Faculty
of Agriculture, University of Aleppo, P.O. Box12052, Aleppo, Syria
E-mail: m-s-lababidi@popmail.com
Abstract
Recently, a new olive pest that infests olive buds and leaves was recorded
and identified as olive buds moth or Jasmine moth Margaronia (= Palpita)
unionalis (Hbn.). Within a short period of time, the pest became epidemic in
olive nurseries throughout the country. Several insecticides available in the
local market were employed as chemical measures for control, but most of them
gave limited effect, and they were harmful to its natural enemies. This work was
carried out to compare the effect of bio-besticide Neem Azal®-T/S (1%
Azadirachtin A) with the effect of some imported commercial insecticides:
Nomolt® 150 SC (Teflubenzuron) and Dimethoate® 40 EC (Dimethoate) on olive buds
moth. The site of the experimental trials was a governmental olive nursery in
Aleppo, Syria. Five olive seedlings were selected and treated, at three dates of
application during 2002, with the aforementioned insecticides three
replicates/treatment, including the control. Changes of larval densities and
infestation behavior, 24 hr, 5 and 9 days, 2, 3 and 4 weeks after each treatment
were recorded. The results obtained were tabulated and statistically analyzed
after being transferrd into percentages using Abbot’s formula. Neem Azal®-T/S
(0.5%) showed the highest killing effect of 88% compared to 67 – 79% for Neem
Azal®-T/S (0.3%), Nomolt or Dimethoate. Results showed that Neem Azal®-T/S was
the most appropriate insecticide to be recommended for the integrated management
of M. unionalis.
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