Olfactory Response and Preference of Telenomus dignus and Trichogramma chilonis to Chilo sacchariphagus

XueHong, Pan; XianKun, Shang; ChengHua, Huang; Wei, Ji-Li

doi:10.1007/s12355-022-01212-5

Cited by 1 publication

(1 citation statement)

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“…It has been reported that Trichogramma was determined to be an economical and effective method to control sugarcane borers in the 1950s in China (Pu & Liu, 1959, 1960). The application of T. chilonis to control sugarcane borers has since been undertaken across large areas in China with promising results being achieved (Pan et al, 2011; Shi et al, 2018). In these past studies, T. chilonis was released in the fields to control the borers after being reared in the laboratory or under factory conditions on eggs of Corcyra cephalonica (Stainton) (Qin et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Impact of different Trichogramma chilonis populations from sugarcane fields on parasitism of Corcyra cephalonica

Qin,

Li,

Luo

et al. 2023

J Applied Entomology

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Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) is the most important parasitoid of sugarcane borers in China. T. chilonis are produced from either rearing on Corcyra cephalonica (Stainton) (Hymenoptera: Galleriidae) eggs in the laboratory or at factory level and released into the field to control sugarcane borers in China. Limited reports on the efficacy of different populations of T. chilonis in the sugarcane field against C. cephalonica are available. This study reports the parasitism efficacy and functional response of different T. chilonis populations against C. cephalonica under laboratory conditions. The number of eggs parasitized by the laboratory population of T. chilonis (total 57.05 eggs) on C. cephalonica was the highest among the different populations investigated; parasitism by the Baise population was the lowest (total 21.30 eggs). The parasitoid emergence rate of T. chilonis Baise population on C. cephalonica (102.16%) was the highest among the different populations, whereas that from the C. cephalonica laboratory population was the lowest (84.73%). The sex ratio (female/male) of T. chilonis laboratory population (3.51) was significantly higher than the other three sugarcane field populations. The functional responses of T. chilonis on C. cephalonica were determined as Holling type II. The search rate of T. chilonis laboratory population (1.0392) parasitizing on the eggs of C. cephalonica was higher than other Trichogramma populations, whereas the handling time (0.00809) was shorter than that of the other populations. The results from this study indicate that the origin of the population of T. chilonis can affect its parasitic ability upon C. cephalonica; therefore, further evaluation for control efficacy of different populations of T. chilonis against sugarcane borers, especially in the field, is warranted.

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Section: Introductionmentioning

confidence: 99%