Virulence of Verticillium lecanii Viegas to Macrosiphum rosivorum Zhang in laboratory

Aphid-killing activeity of the extract from the leaves of Daphne odora Thunb using different separateion methods was studied showed that the median lethal concentrateions (LC50)of the water extraction and ethanol precipitate (WEP)and ethanol precianpitate(EWP)to Macrosiphum rosivorum were 3963mg/L and 6397mg/L .

Preliminary study on natural population structure and dynamics of Macrosiphum avenae;

Effects of wheat synomones on Macrosiphum avenae and its natural enemies;

Resistance of different wheat varieties to Macrosiphum avenae;

EPG Comparison of Sitobion avenae (Fab.) Feeding Behaviors on Three Wheat Varieties;

Effects of wheat-oilseed rape or wheat-garlic intercropping on the population dynamics of Sitobion avenae and its main natural enemies.;

Mechanism for imidacloprid resistance in Sitobion avenae;

Effects of bacterial symbionts on growth,development and fecundity of Sitobion avenae (F.) (Homoptera:Aphididae);

The methods of aphid number ratio, UV, and kinetic measure were adopted to evaluate wheat resistance to Sitobion avenae (F.

To select new gene resources with resistance to Sitobion avenae (F.

Based on the grey system theory,the relationships between total predacious number of enemies and wheat aphid,and the relationships between enemies and their superior natural enemies were studied.

Geostatiscal analysis on spatial patterns of Macrosiphum granarium and Aphidius.;

Uniform Design for Biological Activity from Polygonum nodosum Pers against Macrosiphum granarium

During the years of 1998 and 1999 of experiment results showed that the functional response models that Propylaea japonica preyed on Macrosiphum granarium were: Na=0.