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Biology and seasonal incidence of Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) on Ashwagandha [Withania somnifera (L.) Dunal] in charotur region of Gujarat

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Title Biology and seasonal incidence of Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) on Ashwagandha [Withania somnifera (L.) Dunal] in charotur region of Gujarat
Not Available
 
Creator Chaudhary, V.
Saravanan, L.
 
Subject Biology
Henosepilachna vigintioctopunctata
Seasonal incidence
Withania somnifera
 
Description Not Available
Spotted beetle, Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) is one of the major pest of ashwagandha in charotur region of Gujarat. Its seasonal incidence in cultivated ashwagandha during 2008-09 & 2009-10 along with biology was studied. Spotted beetle was active from last week of September to mid of December with a peak population of grubs (7.8 nos/plant) and adults (1.73 nos/plant) in 2nd week of October (41 SMW) during both the years of observation. Population of spotted beetle showed significant positive correlation with atmospheric temperature (Maximum, Minimum & Mean), however, relative humidity had no effect on development of various stages of the pest beetle. The pest completed its life cycle in 20.08+0.24 days on ashwagandha after passing through four larval instars. The longevity of male and female adults of the pest was 67.79+3.96 and 67.20+3.85 days, respectively. The gravid females laid 562.54+76.16 eggs in several batches during the ovipositional period of 45.67+5.19 days.
ICAR
 
Date 2020-09-02T11:14:00Z
2020-09-02T11:14:00Z
2011-01-01
 
Type Research Paper
 
Identifier Not Available
0971-6831
http://krishi.icar.gov.in/jspui/handle/123456789/40783
 
Language English
 
Relation Not Available;
 
Publisher Association for Advancement of Pest Management in Horticultural Ecosystems