THE ROLE OF HALTICA SP. (COLEOPTERA: HALTICIDAE) AS BIOLOGICAL CONTROL AGENT OF POLYGONUM CHINENSE
No. 4 (1991)
Research Paper
November 17, 2011
Downloads
in controlling Polygonum chinense was evaluated under laboratory condition.
Starvation test of the weevil on 33 weeds and 14 crop plant species indicated that only 6 weed species
were attacked: Polygonum chinense, P. nepalense, P. barbatum, P. longisetum, Ludwigia octovalvis and L.
parennis with P. chinense as the most preferred host plant.
Preliminary damage potential test indicated that a population of 0, 1,2 and 3 pairs of adult weevil reduced
the percentage of fresh weight increment of P. chinense by   0; 46.2; 74.7 and 75.5% respectively. Field
observations indicated that the larvae as well as adult weevils are potential biological control agents of P. chinense.
Further studies are, however, on the host-range of this weevil.
SUN JAY A, S. J. A. (2011). THE ROLE OF HALTICA SP. (COLEOPTERA: HALTICIDAE) AS BIOLOGICAL CONTROL AGENT OF POLYGONUM CHINENSE. BIOTROPIA, (4). https://doi.org/10.11598/btb.1991.0.4.190
Downloads
Download data is not yet available.
Authors who publish with this journal agree with the following terms:
- Authors retain copyright and grant the journal right of first publication, with the work 1 year after publication simultaneously licensed under a Creative Commons attribution-noncommerical-noderivates 4.0 International License that allows others to share, copy and redistribute the work in any medium or format, but only where the use is for non-commercial purposes and an acknowledgement of the work's authorship and initial publication in this journal is mentioned.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
