Articles
POPULATION DYNAMICS OF MAJOR PESTS OF POMEGRANATE IN CENTRAL TELAGANGANA ZONE OF ANDHRA PRADESH
Article number
890_82
Pages
585 – 588
Language
English
Abstract
A fixed plot survey was conducted at the Fruit Research Station, Sangareddy in central Telangana region during 2006-2008 to investigate the population dynamics of major pests of pomegranate.
The major pests recorded on vegetative parts were aphids, thrips, stem borer, while fruit borer, mites and mealy bugs were recorded on reproductive parts.
Five cultivars of pomegranate viz., Araktha, Bhagawa, Mridula, Ganesh and G-137, were screened for pest incidence during 2006-2008. Fruit borer Deudorix isocrates (Fabricius) is the major pest which is constantly and regularly injurious in pomegranate during flowering and fruit set stage.
Oviposition was observed on calyx and young larvae damage the fruits from fruit set to maturity stage.
The incidence of fruit borer was maximum during monsoon season (mrig bahar crop). Among the five cultivars screened for fruit borer, maximum infestation was recorded in Mridula (60%) followed by Araktha, G-137 and Ganesh and lowest in Bhagawa (30%). Low temperatures coupled with high humidity were congenial for the development of borer during the second fortnight of August.
Incidence of thrips was observed on new flush but its severity was less.
Aphids infestation was noticed on new flush as well as small fruits and the infestation was severe during August to September months.
Mite damage is also noticed but with less intensity.
Mealy bug infestation was more in the hast bahar crop and increased with increase in temperature.
The major pests recorded on vegetative parts were aphids, thrips, stem borer, while fruit borer, mites and mealy bugs were recorded on reproductive parts.
Five cultivars of pomegranate viz., Araktha, Bhagawa, Mridula, Ganesh and G-137, were screened for pest incidence during 2006-2008. Fruit borer Deudorix isocrates (Fabricius) is the major pest which is constantly and regularly injurious in pomegranate during flowering and fruit set stage.
Oviposition was observed on calyx and young larvae damage the fruits from fruit set to maturity stage.
The incidence of fruit borer was maximum during monsoon season (mrig bahar crop). Among the five cultivars screened for fruit borer, maximum infestation was recorded in Mridula (60%) followed by Araktha, G-137 and Ganesh and lowest in Bhagawa (30%). Low temperatures coupled with high humidity were congenial for the development of borer during the second fortnight of August.
Incidence of thrips was observed on new flush but its severity was less.
Aphids infestation was noticed on new flush as well as small fruits and the infestation was severe during August to September months.
Mite damage is also noticed but with less intensity.
Mealy bug infestation was more in the hast bahar crop and increased with increase in temperature.
Publication
Authors
D. Anitha Kumari, B.K.M. Lakshmi, T. Suresh Kumar, G. Satyanarayana Reddy
Keywords
fruit borer, Deudorix isocrates, population dynamics, pomegranate pests
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