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EFFECT OF SEX PHEROMONE TRAPS AGAINST CHICKPEA POD BORER, HELICOVERPA ARMIGERA (LEPIDOPTERA: NOCTUIDAE)

KrishiKosh

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Title EFFECT OF SEX PHEROMONE TRAPS AGAINST CHICKPEA POD BORER, HELICOVERPA ARMIGERA (LEPIDOPTERA: NOCTUIDAE)
 
Creator T N, MADHU
 
Contributor C T, ASHOK KUMAR
 
Subject pheromones, yields, biological interaction, chickpeas, animal developmental stages, insecticides, land resources, helicoverpa armigera, pesticides, crops
 
Description Effect of sex pheromone traps against chickpea pod borer H.
armigera (Hubner) (Lepidoptera: Noctuidae) were undertaken at ten
villages in and around Bangalore rural district during 2013-14. The
four different trap densities were evaluated for optimum H. armigera
moth catches (i.e., 10, 20, 30 & 40 traps/acre). The results revealed
that 20traps/acre recorded maximum moth catches (Overall mean
13.60), minimum larval count (Overall mean 0.81) and least pod
damage (Overall mean 6.60%). Studies on the correlation between trap
catches and pest infestation revealed that moth catches was
significantly influenced by maximum temperature (r=0.538), minimum
temperature (0.188) and evaporation (0.072). Rainfall (r=-0.251) and
morning relative humidity (r=-0.350) had adverse effect on the activity
of moths and on pheromone trap catches. The relationship between
moth catches/week, larval count/plant/week was found to be positive
at 10 and 40 traps/acre, while it was negative at 20 and 30
traps/acre. Whereas morning relative humidity, afternoon relative
humidity and rainfall influence positively and maximum temperature,
minimum temperature, evaporation and wind speed negatively
influenced on larval count. Pod infestation was positively influenced
by maximum temperature and Rainfall. Whereas minimum
temperature, morning relative humidity, afternoon relative humidity
and wind speed influenced negatively, peak moth catches were
recorded during January 3rd week (8.52 moths/trap/week). Four
insecticides were evaluated against H. armigera at four locations.
Among them, Chlorantraniliprole 18.5SC, Indoxacarb 14.5SC and
Novaluron 10EC were found to be superior in reducing the moth
catches, larval count and pod infestation when executed with
pheromone traps.
 
Date 2016-10-26T09:03:50Z
2016-10-26T09:03:50Z
2014-07-10
 
Type Thesis
 
Identifier TH-10785
http://krishikosh.egranth.ac.in/handle/1/81989
 
Language en
 
Format application/pdf
 
Publisher University of Agricultural Sciences GKVK, Bangalore