Incidence and Relative Bio-Efficacy of Different Insecticides against Chaetoprocta (Chaetoprocta odata Hewitson) Infesting Walnut in Kashmir Valley

Arshad Abbas, Nazir Ahmad Wani, Sheikh Bilal Ahmad, Abdul Rouf Wani, Mohammad Munib

Abstract


The investigations entitled “Incidence and relative efficacy of different insecticides against Chaetoprocta (Chaetoprocta odata Hewitson) infesting walnut in Kashmir valley” were undertaken in three major walnut growing areas i.e., Salar (Anantnag), Wussan (Ganderbal) and Kulangam (Kupwara) districts of Kashmir Valley for two cropping seasons 2011 and 2012. Incidence of Chaetoprocta (Chaetoprocta odata Hewitson) revealed that the pest appeared in second fortnight of March on the terminal twigs and attained its peak population of 65.80 (2010) and 68.80 (2011) in the 1st week of May at Salar (Anantnag). Pooled relative efficacy of different insecticides in field trials at three locations during 2010 and 2011 revealed that high mean per cent mortality was registered by imidacloprid 200 SL at 0.03 per cent at all the three locations with pooled mean per cent mortality of (91.78) followed by dimethoate 30 EC at 0.05 per cent (88.71).


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DOI: http://dx.doi.org/10.5539/jas.v7n9p212

Journal of Agricultural Science ISSN 1916-9752 (Print) ISSN 1916-9760 (Online)

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