title: [Spatial pattern and its variation of Cnaphalocrocis medinalis larvae and Ummeliata insecticeps under paddy rice cropping neighboring with vegetables or corn].
abstract: Geostatistical methods were adopted to characterize the spatial pattern and its variation of Cnaphalocrocis medinalis larvae (Lepidoptera: Crambidae) and Ummeliata insecticeps (Araneida: Linyphiidae) in the habitats of paddy rice neighboring with white melon, tomato, or corn. In the rice growth period, C. medinalis larvae and U. insecticeps presented aggregative distribution, with the spatial range varied from 1.91 to 182.57 m and from 3.70 to 9.70 m, respectively. Isoline map showed that the density of U. insecticeps was spatially and temporally identical with that of C. medinalis larvae, suggesting that U. insecticeps had strong pursuing and control effects on C. medinalis larvae. Among the test neighboring patterns, paddy rice neighboring with white melon had the best performance of U. insecticeps.
authors.affiliation: College of Resources and Environment, South China Agricultural University, Guangzhou 510642, China. juanjuan0031@yahoo.com.cn
authors.forename: Juan
authors.initials: J
authors.lastname: Zhang
authors.forename: Ling
authors.initials: L
authors.lastname: Zeng
authors.forename: Jun
authors.initials: J
authors.lastname: Huang
authors.forename: Ke-wei
authors.initials: KW
authors.lastname: Chen
mesh_terms: D000383:Agriculture / Q000379:methods; D000818:Animals; D007814:Larva / Q000502:physiology; D007915:Lepidoptera / Q000502:physiology*; D012275:Oryza / Q000254:growth & development / Q000469:parasitology*; D010572:Pest Control, Biological; D013112:Spiders / Q000502:physiology*; D014675:Vegetables / Q000254:growth & development*; D003313:Zea mays / Q000254:growth & development