Isolation and medium selection of Venturia prina;

Design of forecasting and alarming device for pear scab infection based on the VenInf model

The instrument can monitor temperature and relative humidity of pear orchards in real time and calculate the infection quantity by the pathogen according to the monitored data and pear scab forecasting model.

A infection forecasting model of pear scab,named PSCIM,was developed according to the boxcar train technique.

STUDIES ON PARASITIC POSITION AND PATHOGENICITY OF Venturia nashicola;

The effective duration of five fungicides protecting pear against the infection of Venturia nashicola was investigated via conidial inoculation at different time after application of the fungicides.

Conidia of Venturia nashicola, the causal agent of pear scab, were inoculated on 5～10 days old detached leaves of three cvs.

Field Control Test of Fungicides to Venturia pirina in Shanxi;

Isolation and Identification of an Antagonistic Streptomyces Strain Against Alternaria alternate;