Effects of aqueous extracts of Basil, Sodom’s apple and Coriander on leafminer damage to Okra
Abstract
162 words
An experiment was conducted at the University of Gezira
Experimental farm to evaluate the effects of 10% aqueous leaf
and fruit extracts of Basil (Ocimum basilicum L.), leaf extracts
of Sodom’s apple (Calotropis procera Ait) and fruit extract of
Coriander (Coriandrum sativum L.) on damage of okra by
the vegetable leafminer (Liriomyza spp). . The experimental
design was a completely, randomised block with 4 replicates.
The treatments consisted of spraying okra plants with 10%
aqueous extracts of basil, sodom’s apple and coriander. The
efficacy of the extracts was assessed by periodic counting of
active mines (where leafminer larvae were alive and feeding).
The results indicated that the three aqueous extracts significantly
(P<0.05) reduced the infestation level by the leafminer on okra
leaves. Sodom’s apple extract resulted in the lowest cumulative
number of active mines (106), leafminerfollowed by coriander
(124) and basil (132). The control treatment had 489 active
mines. These three plants should be promoted for the
management of leafminers on okra.
Subjects
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