the adoption of integrated pest management (ipm) strategy by farmers of bathinda cotton belt of punjab, india resulted in reduction of insecticidal applications. there was 3-4 times reduction in insecticidal applications in ipm villages (4.86-5.33) over the non-ipm villages (15.16-18.12). a general trend of reduced insecticidal applications of both conventional as well as new insecticides, in i...

a two-year field study was conducted at punjab agricultural university, ludhiana, india, to study the relative abundance of mustard/turnip aphid, lipaphis erysimi (kaltenbach) (hemiptera: aphididae) and the associated resident natural enemies on 10 different rapeseed-mustard genotypes which included: brassica juncea: rh 7846, rh 9501, rk 9501, jmm 927, purple mutant; b. napus: hyola pac 401 (hy...

Natural enemies of the invasive pest Aphis glycines Matsumura can prevent its establishment and population growth. However, current A. glycines management practices include the application of broad-spectrum insecticides that affect pests and natural enemies that are present in the field at the time of application. An alternative is the use of selective insecticides that affect the targeted pes...

Plants are not capable of running away from their enemies, i.e., the herbivores that may eat them. However, under certain circumstances, plants can rely on the natural enemies of insect herbivores for protection. These natural enemies include other insects that are predators and parasitoids. To help protect plants from damage caused by insect herbivores, practical methods have been developed an...

The use of plants to provide nectar and pollen resources to natural enemies through habitat management is a growing focus of conservation biological control. Current guidelines frequently recommend use of annual plants exotic to the management area, but native perennial plants are likely to provide similar resources and may have several advantages over exotics. We compared a set of 43 native Mi...

woolly poplar aphid, phloeomyzus passerinii (signoret), is considered as an important and serious pest of poplar in iran and many countries. during 2002-2003, resistance and susceptibility of 12 poplar clones to p. passerinii were evaluated in hamedan province of iran. number of formed aphid colonies found in a surface unit was counted three times during a growing season. the clones populus alb...

nasonovia ribisnigri (mosely) is one of the most important pests of the lettuce plant and it was reported for the first time in ahvaz in 2008. in order to investigate the dominant species of its natural enemies and their population fluctuations, sample were taken arbitrarily from fifty plants twice a week during the growing season in 2010-2012. in this study, ten species of predators, three spe...