fbpx
Revolution Slider Error: Slider with alias ijcsr-archives not found.
Maybe you mean: 'about-us-01' or 'about-me' or 'startup' or 'startup-02' or 'business' or 'agency'

Mealy bug complex on transgenic cotton in Perambalur district of Tamil Nadu

Title

Mealy bug complex on transgenic cotton in Perambalur district of Tamil Nadu

Authors

Sankar et al.,

Keywords

Emerging pest | infested plants

Publication Details

Vol: 3; Iss: 2;  Feb-17 | ISSN: 2454-5422

Abstract

Different species of insects and mites are reported to devour cotton at various stage of growth and above dozen are very serious pest causes 52-60 per cent losses in seed cotton. After introduction of Bt cotton sucking insect pests are the most important in cotton cultivation. Among the sucking pests, mealy bugs are most serious in Bt cotton. Survey conducted during three consecutive years of 2011-12 from September (Kharif season) to February (Rabi season), 2012-13 and 2013-14 in the same season. Revealed that Phenacoccus solenopsis Tinsley and Paracoccus marginatus Williams and Granara de Willink was the predominant mealy bug species noticed in different blocks of Perambalur district, Tamil Nadu. The mealy bug infestation was observed in grade I (1 to 10 mealy bugs scattered on plant) in all farmer fields surveyed with few exceptions. Scattered infestation of mealy bug was also recorded in other host plants namely, tapioca, bhendi, mesta, mulberry, brinjal, tomato, parthinium, papaya, mango, blackgram, sesamum, redgram, neeriam, sunflower, marigold, tuberose, crotons, jatropha sp, pomegranate, hibiscus, abutilon, guava and curry leaf. The maximum (32.50%) percentage of infested plants was recorded in the block of Veppanthattai and lowest (6.50%) in Alathur block of Perambalur district during 2011 to 2014, respectively. The maximum intensity (1.15) of mealy bug infestation was recorded in the block of Veppanthattai of Perambalur district during 2011-12. The maximum number of plants in grade. IV (whole plant infested) was 61, 42 and 39 respectively. So mealy bug complex is the major issues on transgenic cotton in Perambalur district of Tamil Nadu.

Citation:

C.Sankar, Y.Hariprasad, B.Padmanaban, and N.Akila. “Mealy bug complex on transgenic cotton in Perambalur district of Tamil Nadu”. International Journal of Current Science Research (IJCSR) 3.2 (2017):  1097-1105.