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A report on occurrence of aphidophagous predators of Aphis odinae (van der Goot) (Hemiptera: Aphididae) in cashew ecosystem from Goa, India

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Title A report on occurrence of aphidophagous predators of Aphis odinae (van der Goot) (Hemiptera: Aphididae) in cashew ecosystem from Goa, India
Not Available
 
Creator Maruthadurai.R and Narendra Pratap Singh
 
Subject Aphid, cashew, coccinellids, predation, predators, syrphids
 
Description Not Available
The aphid, Aphis odinae (Van der Goot) (Hemiptera:
Aphididae) is a polyphagous, occasional insect pest of cashew. A field
survey was conducted from 2014 to 2015 in cashew plantations to
record the incidence of aphid and its predators. Periodical sampling
revealed, the occurrence of six species of aphidophagous predators
comprising three species of coccinellids, viz., Scymnus castaneus
Sicard, Cheilomenes sexmaculata (Fabricius) and Pseudaspidimerus
flaviceps (Walker) and three species of syrphids, viz., Paragus serratus
(Fabricius), Dideopsis aegrota (Fabricius) and Ischidon scutellaris
(Fabricius) were found predating on A. odinae. All the immature
stages of predators were found predating on first, second, third and
fourth instars of the aphid. Among the coccinellids, the dominant
species were S. castaneus (4.26 grubs/nut) followed by C. sexmaculata
(0.42 grubs/leaf) and P. flaviceps (0.14 grubs/nut). Of the syrphids,
P. serratus 2.39 larvae/nut was the major predator. The species D.
aegrota (1.2 larvae/leaf) and I. scutellaris (0.5 larvae/nut) were
recorded as minor predators. Seasonal abundance of predators was
synchronized with the aphid with a maximum occurrence during
February 2015. The aphid population gradually reduced from April
onwards due to the voracious feeding activity of the predators. The
study concluded that the aphidophagous predators, viz., coccinellids
and syrphids play a major role in managing the aphid A. odinae in
cashew and could be encouraged for augmentation and conservation
of these predators in a cashew based ecosystem.
Not Available
 
Date 2018-11-12T05:19:10Z
2018-11-12T05:19:10Z
2017-02-26
 
Type Research Paper
 
Identifier Maruthadurai. R and Singh N.P (2017) A report on occurrence of aphidophagous predators of Aphis odinae (Van der Goot) (Hemiptera: Aphididae) in cashew ecosystem from Goa, India. Journal of Threatened Taxa.9 (2): 9858-9861.
ISSN 0974-7907
http://krishi.icar.gov.in/jspui/handle/123456789/10284
 
Language English
 
Relation Not Available;
 
Publisher Not Available