Effect of spraying petroleum white oil. Murphoil on control of scale insects Aspidiotus sp. and their effect on natural enemies Aphytis sp.
1995
Sudoi, V.
The population of Aphytis wasp and that of the Aspidiotus scale insects fluctuated in the field at Timbilil estate, Kericho, throughout the year. Application of 2.5% concentration petroleum oil (Murphoil-Murphy chemicals) to tea for control of fried egg scale Aspidiotus sp. (Homoptera: Diaspidae) attacking tea was done by spraying petroleum oil at different spray frequencies. Petroleum oil was effective for control of Aspidiotus scales at spray interval of 30 days. There was a significant (P
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Эту запись предоставил Kenya Agricultural Documentation Centre