International Journal of Plant Protection

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Incidence and Population Builds up of P. lotus Infesting Capsicum chinense Jacq. in Relation to Weather Factors


Affiliations
1 Department of Entomology, Assam Agricultural University, Jorhat (Assam), India
2 Krishi Vigyan Kendra, South Tripura (Tripura), India
     

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An Experiment was conducted in the experimental plot, Department of Entomology, Assam Agricultural University, Jorhat during 2014 and 2015 to study the population build up of P. lotus infesting Capsicum chinense with respect to weather factors. In the present investigation, the highest population (no/leaf) of yellow mite, P. latus was observed in the month of March with maximum 45 and 28 number of yellow mite per leaf in 2014 and 2015, respectively. The highest overall per cent incidence recorded was 80.61 in the last week of March whereas lowest overall incidence was found in May with 20.12 per cent mite incidence The correlation studies between P. latus and weather parameters revealed that population build up of P. latus found to be significant negative correlation with morning relative humidity (r=-0.787 and r=-721) and rainfall (r=-0.526) in both the years, respectively. Maximum temperature, minimum temperature and evening relative humidity showed a negative and non- significant correlation with mite population. Bright sunshine hour was found to be positively correlated. This present findings will certainly be a helpful for yellow mite forecasting as well as management point of view and to have profitable cultivation of Capsicum chinense by way of mite free crop production.

Keywords

Capsicum chinense, Yellow Mite, Population, Weather Parameters, Correlation.
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  • Incidence and Population Builds up of P. lotus Infesting Capsicum chinense Jacq. in Relation to Weather Factors

Abstract Views: 154  |  PDF Views: 1

Authors

M. Bathari
Department of Entomology, Assam Agricultural University, Jorhat (Assam), India
S. Rahman
Department of Entomology, Assam Agricultural University, Jorhat (Assam), India
D. Sharmah
Krishi Vigyan Kendra, South Tripura (Tripura), India

Abstract


An Experiment was conducted in the experimental plot, Department of Entomology, Assam Agricultural University, Jorhat during 2014 and 2015 to study the population build up of P. lotus infesting Capsicum chinense with respect to weather factors. In the present investigation, the highest population (no/leaf) of yellow mite, P. latus was observed in the month of March with maximum 45 and 28 number of yellow mite per leaf in 2014 and 2015, respectively. The highest overall per cent incidence recorded was 80.61 in the last week of March whereas lowest overall incidence was found in May with 20.12 per cent mite incidence The correlation studies between P. latus and weather parameters revealed that population build up of P. latus found to be significant negative correlation with morning relative humidity (r=-0.787 and r=-721) and rainfall (r=-0.526) in both the years, respectively. Maximum temperature, minimum temperature and evening relative humidity showed a negative and non- significant correlation with mite population. Bright sunshine hour was found to be positively correlated. This present findings will certainly be a helpful for yellow mite forecasting as well as management point of view and to have profitable cultivation of Capsicum chinense by way of mite free crop production.

Keywords


Capsicum chinense, Yellow Mite, Population, Weather Parameters, Correlation.

References