21 February 2025, New Delhi: In January, Jiangsu Gongcheng Bio-tech Co., Ltd received official approval in China for the use of chlorantraniliprole 200g/L SC in combating grassland locusts. This marks the first instance of chlorantraniliprole being registered in China specifically for locust control.
Previously, chlorantraniliprole was authorized for use against pests such as the cabbage beet armyworm and populus fall webworm in China. The newly approved application targets young locust nymphs during their peak period, requiring a dosage of 8-12 ml per mu, combined with 30-60 kg of water, and applied through a single even spray. The recommended safety interval is of five days.
Chlorantraniliprole in India
In India, chlorantraniliprole has been registered for use against a wide range of pests across various crops. It is effective against Green Semi Looper, Stem Fly, Girdle Beetle, and Tobacco Caterpillar on soybean; Stem Borer and Leaf Folder on paddy; American Bollworm, Spotted Bollworm, and Tobacco Caterpillar on cotton; and Fruit Borer and Tobacco Caterpillar on chili, among others. The versatile chemical is widely recognized for its broad-spectrum effectiveness in numerous pest.
Chemical Pesticides in China for Locust Control
Researchers from the College of Plant Protection at Shenyang Agricultural University have highlighted the high toxicity of chlorantraniliprole against grassland locust species, including Calliptamus abbreviatus, Chorthippus brunneus, and Myrmeleotettix palpalis. Additionally, studies from the Chinese Academy of Agricultural Sciences indicate that combining chlorantraniliprole with Metarhizium in ratios of 8:2 or 5:5 enhances its effectiveness against migratory locusts.
Currently, China has approved 18 pesticides for grassland locust control. Among them, only two—chlorantraniliprole and imidacloprid—are chemical-based, while the rest consist of biological products such as matrine, Beauveria bassiana, Azadirachtin, and osthole.
FAO Recommendations for Locust Control in India
The Food and Agriculture Organization (FAO) has outlined a set of recommended chemicals for locust control, particularly for effective management of locust outbreaks in agricultural areas. The recommended chemicals include chlorpyriphos 20% & 50% EC, deltamethrin 2.8% EC & 1.25% ULV, diflubenzuron 25% WP, fipronil 5% SC & 2.92% EC, lambdacyhalothrin 5% EC & 10% WP, malathion 50% EC & 25% WP & 96% ULV.
Powder formulations like Fenvalerate 0.4% DP, Malathion 5% DP, and Quinalphos 1.5% DP are approved for desert locust control in scheduled desert areas under the RC-413 regulation.
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