The researches were carried out in 2007, 2008 and 2009 at Cluj-Napoca （Romania）, in laboratory and field conditions （grassland ecosystems）, in four experiments. Our purpose was to study and use some ecological pes...The researches were carried out in 2007, 2008 and 2009 at Cluj-Napoca （Romania）, in laboratory and field conditions （grassland ecosystems）, in four experiments. Our purpose was to study and use some ecological pest control methods based on indirect and direct strategies： （1） the harmful fauna monitoring in grassland ecosystems and useful fauna identification （by visual control, manually collecting, striking method on a tarpaulin）; （2） the use of some physico-mechanical and biotechnical methods （use of barriers-vessels, repellents, attractant traps-alimentary, visual） to control the pests. The researches concerning the indirect strategies, carried out from Mars 2007 to September 2009. There were identified 28 pest species and 29 useful ones. The direct strategies to control the pests consisted of 3 experiments. The use of colored traps with water （August 2008） on a meadow with ryegrass and clover, in 6 variants （white, silver, orange, green, blue and red） ＋ control （yellow）, recorded a very good efficacy at all variants excepting the red trap （variant 6）. The use of repellents （August 2008）, absinth decoction （against aphids and ants）, bracken extract （against aphids and snails）, common tansy decoction （against ants and soil pests） and kaolinite （against a large amount of pests）, recorded good results removing the pests. The attractant traps with alimentary baits （beer）, meant the use of 10 vessels on a 1000 m2 area, which captured 200 slugs （August 2009）. All three methods recorded a good efficacy against the pests.展开更多
文摘The researches were carried out in 2007, 2008 and 2009 at Cluj-Napoca （Romania）, in laboratory and field conditions （grassland ecosystems）, in four experiments. Our purpose was to study and use some ecological pest control methods based on indirect and direct strategies： （1） the harmful fauna monitoring in grassland ecosystems and useful fauna identification （by visual control, manually collecting, striking method on a tarpaulin）; （2） the use of some physico-mechanical and biotechnical methods （use of barriers-vessels, repellents, attractant traps-alimentary, visual） to control the pests. The researches concerning the indirect strategies, carried out from Mars 2007 to September 2009. There were identified 28 pest species and 29 useful ones. The direct strategies to control the pests consisted of 3 experiments. The use of colored traps with water （August 2008） on a meadow with ryegrass and clover, in 6 variants （white, silver, orange, green, blue and red） ＋ control （yellow）, recorded a very good efficacy at all variants excepting the red trap （variant 6）. The use of repellents （August 2008）, absinth decoction （against aphids and ants）, bracken extract （against aphids and snails）, common tansy decoction （against ants and soil pests） and kaolinite （against a large amount of pests）, recorded good results removing the pests. The attractant traps with alimentary baits （beer）, meant the use of 10 vessels on a 1000 m2 area, which captured 200 slugs （August 2009）. All three methods recorded a good efficacy against the pests.
