Intensity of "Pollu" Beetle, Longitarsus Nigripennis Mots. (Coleoptera : Chrysomelidae) Infestation on Different Cultivars of Black Pepper, Piper Nigrum L.
| dc.contributor.author | Pillai, G.B. | |
| dc.contributor.author | Abraham, V.A. | |
| dc.date.accessioned | 2014-06-30T04:33:01Z | |
| dc.date.available | 2014-06-30T04:33:01Z | |
| dc.date.issued | 2007-02 | |
| dc.description.abstract | Intensity of infestation by the pepper "pollu" beetle Longitarsus nigripennis Mots. (Coleoptera : Chrysomelidae) on different cultivars of black pepper, maintained in the germplasm assemblage at the Pepper Research Station, Panniyur, Taliparamba, Kerala State, was studied. Observations on the total number of spikes and pollu beetle - infested spikes and berries present in three unit areas each of 50 sq. cm. from each of the five standards each of 44 cultivars were recorded during three crop seasons from 1972 to 1974. Analysis of the date collected revealed that though the cultivars like Uthirankotta Types I and II, TMB IV and Shimoga were practically free of pollu beetle incidence, the total number of spikes per unit area and the number of pepper berries per spike were quite meagre. But the cultivars like Karivally, Karimunda and Panniyur-1 (hybrid), which are high yielders producing larger number of spikes per unit area and greater number of closely set berries in each of the spikes, suffered higher intensity of pollu beetle infestation ranging from 40.1% to 56.8%. However, Kalluvally Type-H, a popular North Kerala cultivar, which is a fairly good yielder, was free from pollu beetle incidence in 1974 and recorded only negligible percentage infestation, 0.2% and 1.8%, in 1973 and 1972 seasons respectively. | en_US |
| dc.identifier.citation | In: Proceedings, PLACROSYM II, UPASI, Ootacamund, 26- 29 Jun. 1979. Edited by C. S. Venkataram and others 1980 p-289-293 | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/3458 | |
| dc.language.iso | en | en_US |
| dc.title | Intensity of "Pollu" Beetle, Longitarsus Nigripennis Mots. (Coleoptera : Chrysomelidae) Infestation on Different Cultivars of Black Pepper, Piper Nigrum L. | en_US |
| dc.type | Article | en_US |