Evaluation on the Efficacy of Pollution Free Control Euzophera pyriella Yang
The aim of this study was to evaluate the efficacy of sugar-vinegar mixture, black-light tube and curettage of tree bark against Euzophera pyriella Yang. The number of Euzophera pyriella Yang attracted by sugar-vinegar mixture and different black-light tube every day and the mean larval population density of Euzophera pyriella Yang before and after curettage of tree bark were tested in pear garden of Aksu. The amount of Euzophera pyriella Yang attracted by sugar-vinegar mixture was 1804 in 27 days and the maximum was 267 in single-day. There was significantly difference between the black-light tube and energy-saving lamp (P<0.05). The black-light tube with the wavelength of 425 nm was the most effective tube. The mean number of Euzophera pyriella Yang attracted by it was 6.83 in each day. Before and after curettage of tree bark, the mean larval population density of Euzophera pyriella Yang had decreased from 12.3 to 3.73 (P<0.01). The results showed that all of sugar-vinegar mixture, black-light tube and curettage of tree bark had effects on controlling the population of Euzophera pyriella Yang. The sensitive wavelength of black light lamps was 425 nm. The curettage of tree bark could efficiently control the population density of Euzophera pyriella Yang. The adults of Euzophera pyriella Yang were killed by sugar-vinegar mixture, and a lot of Chrysopa carnea Stephens were also killed in the same time. The paper recommended that the formula of sugar-vinegar mixture should be improved before it was used. The black-light tube with the wavelength of 425 nm was used in monitoring. The curettage of tree bark was used one time a year to control the population Euzophera pyriella Yang.
Euzophera pyriella Yangpollution free controlsugar-vinegar mixtureblack-light tubecurettage of tree bark
NETL
NSTL
万方数据
维普
