Pests and natural enemies in rice cropping system as affected by rice crop genetic diversification
Issue Date
10-2009
Abstract
This study aimed to develop a mechanism for genetic diversification in an intensive rice cropping system. In 2008, a study was conducted at PhilRice Central Experiment Station, Munoz, Nueva Ecija to test the effect of interplanting hybrid PSB Rc72H with a popular variety PSB Rc82 on incidence of insect pests, occurrence of natural enemies, and diseases. Results showed that there was lower whitebacked planthopper population in pure stand of PSB Rc82 and in field interplanted with of PSB Rc72H and PSB Rc82 compared to pure stand of PSB Rc72H. Based on the total numbers of arthropods collected during the dry season, there were more natural enemies in the interplanted field than in the pure stand field of either test variety. In the interplant, bacterial leaf blight incidence was reduced. During the wet season, result showed that there was lower incidence of bacterial leaf blight in PSB Rc82 and interplanted test variety than in the pure stand of PSB Rc72H. These results indicated that the interplanting has pest-reducing effects.
Source or Periodical Title
Philippine Entomologist
ISSN
0048-3753
Volume
23
Issue
2
Page
196
Document Type
Article
Frequency
semi-annually
Language
English
Recommended Citation
Rillon, G. S. and Rillon, N. D., "Pests and natural enemies in rice cropping system as affected by rice crop genetic diversification" (2009). Journal Article. 5416.
https://www.ukdr.uplb.edu.ph/journal-articles/5416
En – AGROVOC descriptors
INSECTA; ARTHROPODA; NATURAL ENEMIES; INTERCROPPING; CROPPING SYSTEMS; GENETIC DIVERSITY (AS RESOURCE); PEST CONTROL