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VOL. 11, ISSUE 2 (2026)
Field efficacy of newer insecticides against Coconut Rugose Spiralling Whitefly Aleurodicus rugioperculatus (Linnaeus) (Hemiptera: Aleyrodidae) and their safety to beneficial insects
Authors
M Kandibane, S Thulasi, K Dharani
Abstract
The present study was aimed to investigate the efficacy of newer
insecticides against the coconut rugose spiralling whitefly Aleurodicus
rugioperculatus. Field experiments were conducted during April–July 2022
and August–November 2022 at the Eastern and Western farms of PAJANCOA and RI,
Karaikal, U.T. of Puducherry, India. Among the treatments, thiamethoxam 25 WG
at 100 g/ha was the most effective, recording the lowest nymphal populations
(5.36 and 4.89 nymphs per leaflet) and adult populations (2.24 and 2.43 adults
per leaflet), with reductions over control of 85.08 and 84.74% for nymphs and
83.81 and 84.06% for adults, respectively. Higher populations of natural
enemies, including coccinellids, spiders, and lacewings, were observed in the
untreated control, followed by azadirachtin 1000 ppm at 700 ml/ha, thiamethoxam
25 WG at 100 g/ha, and pymetrozine 50 WG at 300 ml/ha in both experiments. Based
on these data, it was stated that among the newer insecticides, thiamethoxam 25
WG at 100g/ha was most effective and harmless to natural enemies over the other
treatments and should be included in pest management techniques used to combat
the coconut rugose spiralling whitefly.
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Pages:58-64
How to cite this article:
M Kandibane, S Thulasi, K Dharani "Field efficacy of newer insecticides against Coconut Rugose Spiralling Whitefly <i>Aleurodicus rugioperculatus</i> (Linnaeus) (Hemiptera: Aleyrodidae) and their safety to beneficial insects". International Journal of Entomology Research, Vol 11, Issue 2, 2026, Pages 58-64
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