Patil, D.B. and Thakare, S.M. and Konde, S.A. (2012) Management modules for pod borers of pigeonpea, Cajanus cajan L. Crop Research, 43 (1-3). pp. 201-206.
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Abstract
Pigeonpea is found to be badly affected by pod borer complex since last four to five years and now it is a serious problem in all pigeonpea growing regions. This complex comprises Helicoverpa armigera, Exelastis atomosa and Melanagromyza obtusa, which is responsible to cause direct damage to pods and grains which result in the grain yield loss and fodder too. Because of this, India is facing deficit problems in pulses. This research made efforts to find out the suitable management modules, comprising the low cost and eco-safe technologies to manage this problem at the initiation point to avoid the damage and loss with keeping environmental harmony as synthetic pesticides have been found hazardous. The investigated results indicate that the ‘Biointensive module’ comprising seed treatment of Trichoderma @ 4 g/kg seed followed by spraying of Neem seed extract 5% at bud initiation stage followed by spraying of spinosad 45 SC @ 0.01% at 15 days after bud initiation stage, was found most effective in reducing larval population [Helicoverpa armigera, Exelastis atomosa (1.72; 2.54 l/plant, respectively)]; and pod damage at harvest by pod borer complex (13.2%) and recorded highest yield and ICBR alongwith higher population of natural enemies followed by IPM module i. e. collection and destruction of last year residues, ploughing of soil in April, selection of resistant variety, increased seed rate by 20%, seed treatment with Trichoderma @ 4 g/kg seed, spraying NSE 5% at bud initiation stage, spraying of NSE 5% at 5% fruiting bodies damage level and spraying of HaNPV 250 LE/ha for H. armigera if observed; and low cost technology module, consisting of deep ploughing in April, mechanical collection of larvae, use of moderately pest resistant variety i. e. Asha, increased seed rate by 20%, seed treatment with Trichoderma @ 4 g/kg seeds and spraying of NSE 5% at bud initiation stage and 15 days after bud initiation stage. All these three modules recorded lower larval population of pod borer complex, pod damage at harvest and recorded higher population of natural enemies and higher ICBR.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Biointensive module, Insecticide module, IPM, Low cost technology, Trichoderma |
| Author Affiliation: | Department of Entomology, Post Graduate Institute, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (M. S.), India |
| Subjects: | Plant Protection |
| Divisions: | Pigeonpea |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 26 Nov 2015 08:33 |
| Last Modified: | 26 Nov 2015 08:33 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13998 |
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