Studies on Infestation of Maize Stem Borer Chilo partellus (Swinhoe) (Lepidoptera: Crambidea) in North Kashmir

Author: Waseem Ahmad War*, Shafiq Ahmad Hakeem, Umer bin Farook, Jameela Rasool, Ishfaq Majeed Shah, Saima Bashir and Showkat Ahmad Sheikh

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Abstract

The survey was carried out at various locations of Kupwara district (North Kashmir) in Jammu and Kashmir, viz. high, mid and low altitude during the year 2019. The study revealed that leaf infestation commenced from 24th standard week and lasted up to 40th standard week reaching its peak infestation of 48.05% at 32nd standard week. Maximum leaf infestation was observed in low altitude (30.62%) followed by mid (23.99%) and high (13.56%). Deadheart were observed from 24th standard week till 30th standard week with its peak of 21.90% in 28th standard week. Highest dead heart formation was recorded in low altitude (10.44%) followed by mid (8.31%) and high altitude (5.2 %) respectively. Stem tunnelling caused by maize stem borer was observed from 34th standard week up to the crop maturity. Maximum mean tunnel length was found in low (5.57 cm) followed by mid (3.43 cm) and high (1.72 cm) altitudes, respectively. The maize stem borer is gaining status of key pest under temperate conditions o

Keywords

Altitude, Deadhearts, Infestation, Stem tunnelling

Conclusion

Maize stem borer is serious pest of maize in north kashmir causing huge losses every year. The occurrence of multiple resistance system in association with low natural enemy population the pest is growing and expanding its range to every corner of the UT of Jammu and Kashmir. It is imperative to develop IPM strategies against the pest in order to avoid resistance and resurgence. It was seen that the low altitude areas are more prone to Chilo partellus attack among all the three altitudes of Kupwara district. The Chilo partellus sympotms viz; leaf infestation, dead hearts and stem tunnelling were observed more in low altitude followed by mid and High.

References

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How to cite this article

Waseem Ahmad War*, Shafiq Ahmad Hakeem, Umer bin Farook, Jameela Rasool, Ishfaq Majeed Shah, Saima Bashir and Showkat Ahmad Sheikh (2022). Studies on Infestation of Maize Stem Borer Chilo partellus (Swinhoe) (Lepidoptera: Crambidea) in North Kashmir. Biol