Evaluation of Different Insecticides against Aphid, Macrosiphum euphorbiae Infesting Rose

Author: Priyanka, Kishor Pujar and Moulya M.R.

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Abstract

Rose plant is affected by several insects, mites, diseases and nematodes posing a serious threat to rose cultivation. Insects and mites attack different parts of rose plants at every phenophase of growth. Insect and mite pests on rose can cause 28–95% damage individually or in groups both in field and polyhouse. Cultural practices and botanicals can reduce the pest population. Insecticides should be applied as and when required. Hence, investigation on evaluation of different insecticides against aphid, Macrosiphum euphorbiae was carried out at Karnataka State Department of Horticulture, Shivamogga during 2017-2018 under open field conditions. For this study, seven insecticides (acetamiprid 20 SP, imidacloprid 30.5 SC, thiomethoxam 25 WG, dinutefuron 20 SG, diafenthiuron 50 WP, chlorfenapyr 10 EC and dichlorvos 76 EC) were tested, along with an untreated control. The overall mean aphid population after spraying insecticides indicated that, imidacloprid 30.5 SC was superior (8.47 per 5 cm twig). When compared to imidacloprid 30.5 SC, treatments with dinotefuron 20 SG and acetamiprid 20 SP were found to be equally effective (14.06 and 15.53 per 5 cm twig). Among the treatments, imidacloprid 30.5 SC had the highest percent reduction of 81.17, followed by thiamethoxam 25 WG and dinotefuron 20 SG (73.77 and 68.76% respectively).

Keywords

Macrosiphum euphorbiae, rose, insecticides and open field conditions

Conclusion

Overall results of the study conclude asimidacloprid 30.5 SC was found effective in controlling the aphids followed by thiamethoxam 25 WG and dinotefuron 20 SG.

References

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How to cite this article

Priyanka, Kishor Pujar and Moulya M.R. (2023). Evaluation of Different Insecticides Against Aphid, Macrosiphum euphorbiae Infesting Rose. Biological Forum – An International Journal, 15(10): 871-874.