In the current study, the
aphids were represented by only two species: Sitobion avenae, which exibited greater abundance (85%) (Hemiptera: Aphididae), and Rhopalosiphum padi (15%) (Hemiptera: Aphididae).
Key words: Canola,
aphid, Lipaphis erysimi, nitrogen application.
The present studies were conducted with the objective to find out the effect of allelopathic water extracts from sorghum, sunflower, brassica and mulberry on mortality of cabbage
aphid which severely damages canola crop in Pakistan.
These findings contrast with studies conducted in temperate regions where cereal
aphids and their parasitoids presented positive associations with non-crop habitats (Thies et al.
The result further revealed that the adult longevity was observed on fresh, frozen and dried
aphids in the laboratory.
Even both Juniperus phoenicea and Rosmarinus officinalis showed mortalities more than 50 % to
aphids, but increasing the concentration of Juniperus phoenicea from 1000 ppm to 100,000 ppm resulted in valuable increase in mortality of
aphids (Fig.
balteatus and selected species of
aphids were chosen on the basis of their abundance in sampled data.
To determine the
aphid density, the total number of
aphids per leaf was also observed.
The
aphids have been collected with yellow vessel traps on three day intervals.
Commonly referred to as plant lice or greenflies,
aphids are a taxon of small, soft bodied insects belonging to the order Hemiptera, suborder Sternorrhyncha, superfamily Aphidoidea and family Aphididae (Blackman and Eastop, 2012).
If you wish to spray
aphids, use a liquid made up of soft soap and warm water.
If you wish to spray
aphids, just use a liquid made up of soft soap and warm water.
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