Bioecology of coconut whitegrub Leucopholis coneophora Burmeister in Kerala

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dc.contributor.authorChandrika Mohan
dc.contributor.authorVidyasagar, P.S.P.V.
dc.date.accessioned2014-05-27T05:00:10Z
dc.date.available2014-05-27T05:00:10Z
dc.date.issued2007-02-08
dc.description.abstractStudies were carried out on the ecology, biology and population dynamics of Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae: Melolonthinae), a key pest of coconut in India. The adult emergence from soil was observed in the field after 4-5 rainy days irrespective of the amount of rainfall, combined with a sudden fall in soil temperature. In the field-collected samples the ratio of female to male was 1:8. Adults of both sexes were also found attracted to light traps in small numbers and their female to male sex ratio was 1:5. Out of several plant species screened in lab cages, the tender leaves of mango (257 mmVday) were preferred over cashew, banana, sapota and coconut. An average fecundity of 23.08 (± 1.985) eggs per female was observed in the lab. The incubation period was 23.94 (± 0.134) days and the I, II and III larval instars were completed in 40, 55 and 175 days respectively followed by the pupal period of 25 days. Feeding potential of III instar larvae has revealed that an average of 1.03g of fresh coconut root/larva was consumed in 24 hours. The phenology of the pest has been investigated and the peak population of the pest was observed in the field during the month of September.en_US
dc.identifier.citationJ.Plantn.Crops 1993 suppl. v-21 p-167-172en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1837
dc.language.isoenen_US
dc.subjectbioecology
dc.subjectcoconut pests
dc.subjectwhitegrub
dc.subjectleucopholis coneophora
dc.titleBioecology of coconut whitegrub Leucopholis coneophora Burmeister in Keralaen_US
dc.typeArticleen_US

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