Specimens of Ceratopogonidae were collected from the Nachitai District of Qinghai Province.Among them,a new species of the genus Palpomyia was discovered and named Palpomyia nachitai He,Liu and Yu sp.nov.
In this paper, 33 known species of Palpomyia are described. A new species of Palpomyia named Palpomyia nanniwana He, Liu and Yu sp. nov. is reported from Shaanxi Province, China.
Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as trans...Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as transmitters of animal and human diseases. No statistical difference in egg density （#eggs/mL） among farming systems （P = 0.345） were observed. However, there was significant difference in larval density （#1arvae/mL） among farming systems （P 〈 0.001） particularly between organic and conventional farms and between organic and mixed farms at （P 〈 0.05）. Among the variables in the macroclimate category, wind velocity and ambient temperature significantly influenced larval density in conventional farms. Among the variables in the microclimate category, water temperature significantly contributed to larval density in both the mixed and conventional farms whereas water turbidity, in conventional farms. Among the variables in the rice canopy category, the number of tillers per plant was a significant contributor to larval density in all farm types. No variable among the environmental exposure categories affected the larval density in organic farms.展开更多
文摘Specimens of Ceratopogonidae were collected from the Nachitai District of Qinghai Province.Among them,a new species of the genus Palpomyia was discovered and named Palpomyia nachitai He,Liu and Yu sp.nov.
文摘In this paper, 33 known species of Palpomyia are described. A new species of Palpomyia named Palpomyia nanniwana He, Liu and Yu sp. nov. is reported from Shaanxi Province, China.
文摘Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as transmitters of animal and human diseases. No statistical difference in egg density （#eggs/mL） among farming systems （P = 0.345） were observed. However, there was significant difference in larval density （#1arvae/mL） among farming systems （P 〈 0.001） particularly between organic and conventional farms and between organic and mixed farms at （P 〈 0.05）. Among the variables in the macroclimate category, wind velocity and ambient temperature significantly influenced larval density in conventional farms. Among the variables in the microclimate category, water temperature significantly contributed to larval density in both the mixed and conventional farms whereas water turbidity, in conventional farms. Among the variables in the rice canopy category, the number of tillers per plant was a significant contributor to larval density in all farm types. No variable among the environmental exposure categories affected the larval density in organic farms.
