title: Investigation on effect of Populus alba stands distance on density of pests and their natural enemies population under poplar/alfalfa agroforestry system.
abstract: This study was carried out in order to distinguish the effect of agroforestry system (combination of agriculture and forestry) on pests and natural enemy's population in poplar research station. Wood is one of the first substances that naturally was used for a long period of time. Forage is an important production of natural resources too. Some factors such as proper lands deficit, lack of economy, pest and disease attacks and faced production of these materials with serious challenges. Agroforestry is a method for decrease of the mentioned problems. The stands of poplar had have planted by complete randomized design with 4 treatments (stand distance) of poplar/alfalfa include 3x4, 3x6.7, 3x8, 3x10 m and 2 control treatments, alfalfa and poplar. The results showed that Chaitophorus populeti had the highest density in poplar and 3x10 m treatments. Monosteira unicostata is another insect pest that had most density in 3x10 m treatment. And alfalfa had high density of Chrysoperla carnea. The density of Coccinella septempunctata, were almost equal in all treatments.
authors: Agricultural and Natural Resources Research Center, West Azarbaijan, Orumieh, Iran.
authors: Z H
authors: ZH
authors: Khabir
authors: S E
authors: SE
authors: Sadeghi
authors: S
authors: S
authors: Hanifeh
authors: A
authors: A
authors: Eivazi
mesh_terms: D000383:Agriculture / Q000379:methods*; D000818:Animals; D016468:Forestry / Q000379:methods*; D007313:Insecta / Q000472:pathogenicity*; D000455:Medicago sativa / Q000469:parasitology*; D032107:Populus / Q000469:parasitology*; D014197:Trees