Evaluation of IPM Module for the Management of Key Insect Pests in Chilli
M. Senthilkumar
Horticultural Research Station, Tamil Nadu Agricultural University Yercaud, Salem, Tamil Nadu, India.
P. Ayyadurai
Centre of Excellence for Millets, Tamil Nadu Agricultural University, Athiyandal, Tiruvannamalai Dt., Tamil Nadu, India.
P. Senthilkumar *
Regional Research Station, Tamil Nadu Agricultural University, Paiyur, Krishnagiri Dt, Tamil Nadu, India.
M. Deivamani
ICAR-Krishi Vigyan Kendra, Dharmapuri, Tamil Nadu Agricultural University, Tamil Nadu, India.
S. Thangeswari
Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.
M. Paramasivam
Regional Research Station, Tamil Nadu Agricultural University, Virudhachalam, Tamil Nadu, India.
B. Sivakumar
Forest College and Research Institute, Tamil Nadu Agricultural University, Mettupalayam, Tamil Nadu, India.
K. Sasikumar
Regional Research Station, Tamil Nadu Agricultural University, Paiyur, Krishnagiri Dt, Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
Chilli is a crop cultivated in tropical and subtropical regions of India, and the crop is attacked by a multitude of pests at different crop stages. The present study revealed that field experiments were laid out with three treatments, viz., IPM module, farmer practice, and untreated control, at Kuttiyagoundanur village of Kolathur block of Salem District, Tamil Nadu. The results of the IPM capsule for the management practices of major pests and diseases, including viral diseases in chillies. The pre-treatment count on thrips/leaf was non-significant in all treatments, and it ranged from 7.20 to 8.40 thrips/leaf. Among the three treatments, farmers practice of chemical control recorded less infestation of 2.93 thrips/leaf, followed by the IPM module recording 3.60 thrips/leaf. Before adoption of treatment, the mite/leaf count was between 17.09 and 19.23 mite/leaf. The IPM module recorded less infestation of 5.32 mites/leaf, followed by farmers practice recording 12.90 mites/leaf. The pre-treatment count of Helicoverpa armigera larvae was between 3.20 and 3.72 larvae/plant. Among the treatments, chemical control recorded less infestation of fruit borer and fruit damage (0.17 larvae/plant) and 1.40 percent, followed by the IPM module, which is 1.17 larvae/plant and 4.91 percent. The leaf curl infection was low in farmers practices. 10.82 percent, followed by the IPM module recorded 15.26 percent. Maximum fruit yield of 11200 kg/ha with a comfortable B:C ratio of 2.96 was obtained in the IPM module, followed by farmer practice with a B:C ratio of 2.91.
Keywords: Chilli, thrips, insecticides, mite