Population management of cotton Jassid, Amrasca biguttula biguttula Ishida through its biological control agent, Arescon enocki (Rao and Kaur) under field and laboratory conditions at upper Sindh, Pakistan

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Population management of cotton Jassid, Amrasca biguttula biguttula Ishida through its biological control agent, Arescon enocki (Rao and Kaur) under field and laboratory conditions at upper Sindh, Pakistan

Hakim Ali Sahito, Fozia Soomro, Tasneem Kousar, Zafar Hussain Shah, Wali Muhammad Mangrio
Int. J. Biosci.13( 2), 212-218, August 2018.
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The research study was carried out under the cotton field conditions (kept free from insecticides) at SALU – Khairpur during, 2017. The data was taken on a weekly basis from randomly selected on 20 plants for pest population and it’s proper biological control from seedling up to the harvest of the crop. The population of jassid was recorded from different parts of the plant (top, middle, and bottom portions). Thus, the biological control of jassid pest was confirmed under laboratory conditions with its proper emergence and percent population was also evaluated. Further, the results showed that the maximum population of jassid population was recorded in the month of August on top portion 4.34±0.87 and minimum in September on bottom portion 0.78±0.71 whereas; the biological control of jassid known as jassid endo-parasite, Arescon enocki is first time reported from this region (upper Sindh) which was observed in the month of July 30% and in October 18% under laboratory conditions at Department of Zoology, SALU – Khairpur. It was concluded that the population of A. biguttula biguttula was found fluctuated under field conditions and its proper biological control throughout the season. It is further recommended to encourage the biological control, A. enocki that may cause to get rid of from the vigorous jassid pest of the major cultivated cotton crop at the upper region of Sindh province.


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