scholarly journals POPULATION DYNAMICS OF APHIS CRACCIVORA KOCH , LIRIOMYZA TRIFOLII (BURGESS) AND THE ASSOCIATED PREDATORS ON FABA BEAN PLANTS

2017 ◽  
Vol 2 (3) ◽  
pp. 241-247
Author(s):  
M.R. EL- Aassar ◽  
Samia M. Abozaid ◽  
A.A. Mourad ◽  
E.A.M. Mousa
Keyword(s):  
Population Dynamics ◽  
Faba Bean ◽  
Aphis Craccivora ◽  
Liriomyza Trifolii ◽  
Bean Plants ◽  
Aphis Craccivora Koch

Effects of intersowing with beans on the spread of groundnut rosette virus by Aphis craccivora Koch (Hemiptera, Aphididae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 331-333 ◽  
Author(s):  
J. A. K. Farrell
Keyword(s):  
Phaseolus Vulgaris ◽  
Arachis Hypogaea ◽  
Virus Disease ◽  
High Density ◽  
Aphis Craccivora ◽  
Plant Populations ◽  
Bean Plants ◽  
Aphis Craccivora Koch ◽  
Field Beans

AbstractIn two trials, at Chitedze, Malawi, in 1966–1967, the spread of rosette virus disease in groundnuts (Arachis hypogaea) intersown with field beans (Phaseolus vulgaris) was less than the spread in groundnut monocultures comprising plant populations equivalent to the number of groundnut plants and to the total number of plants in the intersown crop. In one trial, numbers of early rosette transmissions were related to numbers of alate Aphis craccivora Koch, the vector of the virus, found on groundnut plants. Immigrant alate A. craccivora settling on the intersown crop were trapped by the hooked epidermal hairs of the bean plants and the observed reduction of rosette infection in the intersown crop was attributed to this effect. Inter-sowing with beans is considered less effective than early-sown, high-density monoculture as a method of reducing groundnut rosette infections and yields of groundnuts from inter-sown crops may be lower than those obtained from high-density monoculture.

Population dynamics of Aphis craccivora (Koch) and its natural enemies on bean crop in relation to weather parameters in Vadodara, Gujarat, India

2016 ◽  
Author(s):  
Ruchika Kataria ◽  
Dolly Kumar
Keyword(s):  
Population Dynamics ◽  
High Temperature ◽  
Aphis Craccivora ◽  
Aphid Population ◽  
Agricultural Fields ◽  
Biotic Factors ◽  
Aphis Craccivora Koch ◽  
Weather Parameters ◽  
Abiotic And Biotic Factors ◽  
Bean Crop

The studies on the population dynamics of Aphis craccivora (Koch) were conducted during 2008-2011. This pest is a serious pest in the agricultural fields of Vadodara, India. The results showed that the aphid population was higher in the month of September to January on bean crop. The maximum population of Aphis craccivora (Koch) was seen in the month of January to March. The correlation of the aphid population was done with abiotic and biotic factors. The aphid population was showing positive correlation with high temperature and the population of predators and other associated insect was showing negative correlation with minimum temperature, relative humidity and rainfall. Hence the information contained in this paper lead to the identification of the proper integrated pest management (IPM) practises for Aphis craccivora (Koch) management.

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