Comparison of dose responses and resistance ratios in four populations of the rice stem borer, Chilo suppressalis (Lepidoptera: Pyralidae), to 20 insecticides

Abstract

The results from this study provide valuable information for selection and adoption of new alternative insecticides and for resistance management of the rice stem borer.

Appraisal of the Impact of Three Insecticides on the Principal Rice Pests and Their Predators in China

“…The overuse of organophosphorus, carbamate, and pyrethroid insecticides on rice pests throughout Asia has been cited as a major cause of planthopper and rice leaffolder outbreaks, as excessive spraying with insecticides disrupts the natural biological control of these pests (Dale 1994;Hemingway et al 1999;Yea et al 2003;Nathan et al 2006;He et al 2008). Our results indicate that a double application of thiamethoxam in plots had significant negative effects on rice leaffolder control.…”

Status of Insecticide Resistance of the Whitebacked Planthopper,Sogatella furcifera(Hemiptera: Delphacidae)

“…The populations with resistance were located mainly in Yunnan and the Guangxi Autonomous Region of China, and this is where the WBPH sources for the rice growing areas of the Yangtse River Basin are located. Considerable resistance was also discovered in field populations of C. suppressalis in China (He et al 2008).…”

“…Chlorpyrifos was the main insecticide for control of Asiatic rice stem borer (Chilo suppressalis [Walker]; Crambidae) and rice leaf-folder (Cnaphalocrocis medinalis [Guinée]; Crambidae) in China for yr (He et al 2008;Zheng et al 2011), and was also intensively used to control the rice planthopper. Fukuda & Nagata (1969) reported great differences in susceptibility to organophosphorus insecticides among geographic populations of WBPH.…”

Sublethal Effects of Virtako™on Life Table Parameters and Wing Formation of the Brown Planthopper (Homoptera: Delphacidae)

“…The overuse of organophosphorus, carbamate, and pyrethroid insecticides on rice pests throughout Asia has been cited as a major cause of planthopper and rice leaffolder outbreaks, as excessive spraying with insecticides disrupts the natural biological control of these pests (Dale 1994;Hemingway et al 1999;Yea et al 2003;Nathan et al 2006;He et al 2008). Our results indicate that a double application of thiamethoxam in plots had significant negative effects on rice leaffolder control.…”