Distribution pattern and lifetable of stem borer Chilo partellus on maize

Kumar, Devbrat; Karuna, K.; Saha, Tamoghna; Singh, Sehijpal

doi:10.5958/0974-8172.2018.00313.9

Cited by 1 publication

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“…Suneel Kumar et al (2018) observed a peak parasitism of C. partellus by C. flavipes during 40 th SMW in kharif and 4 th SMW in rabi. Kumar (2017) revealed that the larval mortality was 37 and 16.07% due to parasitisation and unknown factors, respectively; and mortality of pupae was 11.76% due to diseases while 15.38% failed to emerge into moths. The total mortality (K value) of C. partellus was 0.88 due to the effect of biotic and abiotic factors.…”

Section: Resultsmentioning

confidence: 99%

Lifetables of Chilo partellus (Swinhoe) infesting rabi sorghum

Meena

Bhamare

2023

ije

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This study on the sorghum spotted stem borer Chilo partellus (Swinhoe) was conducted at the Post Graduate Experimental Field of Department of Agricultural Entomology, College of Agriculture, Campus Latur during 2020-21. The results revealed that C. partellus passed through three generations on rabi sorghum. The mortality in early instar larval stage was observed due to unknown reasons (17.24, 19.05 and 14.51%, respectively), Callibracon sp. (4.16, 11.76 and 8.33%, respectively) and Cotesia flavipes (8.69, 6.67 and 9.65%, respectively) in its first, second and third generations. The mortality in late instar larvae was also found owing to unknown reasons (19.4, 14.28, and 11.36%, respectively), Callibracon sp. (11.76, 12.49 and 11.43%, respectively) and C. flavipes (13.33, 14.28 and 10.26%, respectively) in the first, second and third generations. In first generation, the pupal mortality was not observed, and when noticed it was due to unknown reasons (11.11 and 16.12%, respectively) during second and third generations. The trend index and generation survival were 1.44 and 0.44; 1.48 and 0.38 and; 0 and 0.42 during first, second and third generations, respectively.

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Section: Resultsmentioning

confidence: 99%