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Agricultural Science Digest

BIOEFFICACY OF MONOCROTOPHOS AS INFLUENCED BY DIFFERENT HIGH VOLUME SPRAYERS AGAINST SPODOPTERA LITURA F. AND HEUCOVERPA ARMIGERA HB., ON TOBACCO

Article Id: ARCC4995 | Page : 9 - 12
Citation :- BIOEFFICACY OF MONOCROTOPHOS AS INFLUENCED BY DIFFERENT HIGH VOLUME SPRAYERS AGAINST SPODOPTERA LITURA F. AND HEUCOVERPA ARMIGERA HB., ON TOBACCO.Agricultural Science Digest.2001.(21):9 - 12
Ch. Rama Devil, K.C. Punnaiah2, G. Raghupathi Rao and P. Pumachandra Rao
Address : CTRI-Research Station, Guntur-522004; India

Abstract

Different high volume sprayers such as hand compression, knapsack, Hi-tech and akela sprayers with single and double duromlst nozzles at 30 and 40 PSI pressure were tested with monocrotophos 36 WSC against lepidopteran pests of tobacco during 1998–99. Hi-tech sprayer was significantly superior in recording the highest reduction of S. litura and H. armigera followed by Knapsack, hand compression and akela sprayers. Hi-tech sprayers with double nozzle at 40 PSI reduced the pest load to an extent of 93.86 per cent of S. lituraand 74.65 per cent of H. armigera over untreated check.

References

  1. Anonymous (1997-98) Annualreport 1997-98 CTRI Rajahmundry pp: 165.
  2. Chari, M. S. eta/. (1996) J. AppJd. Zoo/. Res. 7:21-25.
  3. Flemming, R. and Ratnakaran, A. (1985) J. EconEnt. 78: 1179-1181.
  4. Raghupathi Rao, G. (1993-98) Final report C T R I-Res Station, Guntur.
  5. Raghupathi Rao, G. et al. (1998) In: National Seminar on Entomology in 21~ Century, Udaipur 30th April to 2nd May 1998.

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