title: Ecological effects of imidacloprid on arthropod communities in and around a vegetable crop.
abstract: To elucidate the ecological impacts of imidacloprid [1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine] on vegetable crops and their surrounding areas, arthropods on eggplant patches treated with this insecticide were monitored throughout two cultivation seasons, spring and autumn, and the results compared with those of control crops. Residues of imidacloprid in soil accounted for 4-8% of total applied, and concentrations outside the crop were always below 5 micro g/kg. Communities of the crop vegetation experienced significant density reductions, mostly of aphids, and had fewer species diversity during the first month. Those in the surrounding pasture were similarly affected though with less intensity, while non-target ground arthropods both inside and outside the crop only showed significant impacts in the two weeks after planting.
authors: Faculty of Horticulture, Chiba University, Matsudo, Japan. sanchezbayo@mac.com
authors: Francisco
authors: F
authors: Sánchez-Bayo
authors: Hanae
authors: H
authors: Yamashita
authors: Ryu
authors: R
authors: Osaka
authors: Masahiro
authors: M
authors: Yoneda
authors: Kouichi
authors: K
authors: Goka
mesh_terms: D000818:Animals; D001042:Aphids / Q000187:drug effects* / Q000254:growth & development; D044822:Biodiversity; D017753:Ecosystem; D004784:Environmental Monitoring; D007093:Imidazoles / Q000494:pharmacology*; D007300:Insect Control / Q000379:methods*; D007306:Insecticides / Q000494:pharmacology*; D000073943:Neonicotinoids; D009574:Nitro Compounds / Q000494:pharmacology*; D010573:Pesticide Residues / Q000032:analysis*; D011156:Population Density; D012621:Seasons; D012989:Soil Pollutants / Q000032:analysis; D032323:Solanum melongena; D013045:Species Specificity; D013997:Time Factors
chemical_list: D007093:Imidazoles; D007306:Insecticides; D000073943:Neonicotinoids; D009574:Nitro Compounds; D010573:Pesticide Residues; D012989:Soil Pollutants; C082359:imidacloprid