ISHS Acta Horticulturae 108: International Cashew Symposium
AERIAL SPRAYING AGAINST TEA MOSQUITO IN CASHEW |
| Authors: | M.V. GEORGE, V. SINGH, T. PETER |
| Abstract:
Comparative efficacy of ultra low volume (aerial spray) and the high volume spray (employing rocker sprayer) for the control of tea mosquito was evaluated during 1977–78 season in the cashew plantations of Kerala Plantation Corporation at Muliyar, Adhur and Perla villages, in Kerala, India. Two sprays were given in November, 1977 and January, 1978 synchronising with the emergence of new flushes and inflorescences. The infestation of shoots and inflorescences was significantly reduced in the plots which received aerial spraying and the yield increase was 40 per cent for the number of nuts and 37 per cent for the weight of nuts harvested over the plots receiving high volume spray (2.2 kg Vs 1.6 kg per tree). | |
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