Laboratory evaluation of pirmecon against rice weevil complex, Sitophilus spp., red flour beetle Tribolium castaneum (Herbst), and lesser grain borer, Rhyzopertha dominica (Fabr.)
Issue Date
10-2016
Abstract
The effectiveness of three concentrations of Pirmecon 55EC (3.30, 6.60 and 13.20 ml/li H sub 2 O) was evaluated against three stored product insect pests [rice weevil complex complex, Sitophilus spp.; red flour beetle, Tribolium castaneum (Herbst) and lesser grain borer Rhyzopertha dominica (Fabr.) Actellic 50EC at 6.60 ml/li served as standard insecticide while plain water was used as control for comparison. Each concentration of the test insecticide was sprayed separately on 20 x 30 cm polypropylene sack to the point of run-off, air dried and placed inside a 19-cm diameter acrylic pan. The test insects were separately introduced inside the acrylic pan containing, the sack impregnated with each of the insecticide treatments. The exposure of Sitophilus spp., T. castaneum and R. dominica immediately after sack-impregnation with Actellic and three concentrations of Pirmecorn provided 100% mortality of all the test insects. The sack impregnation of the different insecticide treatments remained residually affective against Sitophilus spp. and T. castaneum until 60 days with 100% mortality. Likewise, 100% mortality was obtained for R. dominica when exposed from 5-25 days after sack impregnation with all insecticide treatments. Pirmecorn at 6.60 ml/L is an effective as the standard insecticide(Actellic) in protecting grains against the infestation of Sitophilus spp., T. castaneum and R. dominica, even up to 60 days after sack impregnation.
Source or Periodical Title
The Philippine Entomologist
ISSN
0048-3753
Volume
30
Issue
2
Page
187
Document Type
Article
Frequency
semi-annually
Language
English
Recommended Citation
Javier, Pio A. and Punzalan, Evangeline G., "Laboratory evaluation of pirmecon against rice weevil complex, Sitophilus spp., red flour beetle Tribolium castaneum (Herbst), and lesser grain borer, Rhyzopertha dominica (Fabr.)" (2016). Journal Article. 4460.
https://www.ukdr.uplb.edu.ph/journal-articles/4460
En – AGROVOC descriptors
SITOPHILUS; TRIBOLIUM CASTANEUM; TRIBOLIUM; RHYZOPERTHA DOMINICA; SPECIES; PESTS OF PLANTS; STORED PRODUCTS PESTS
