Abstract:

In order to solve the problem of using phenol solution bacteria or medicinal to control strawberry plant, proposed to effectively combine the two into complex biological control agents to Qudu inhibitory effect. This study used phenolic acid degradation fungi B3512 and six kinds of medicinal plant material (turmeric, peel, kaempferol, citrus aurantium, Z1, Z2) which had inhibited to strawberry wilt strongly as test materials, through measured the growth rate of B3512 in six different medicinal plants and with antimicrobial test. Finally we identified that B3512 had the fastest growth rate and the highest inhibition rate of strawberry wilt pathogen when turmeric was considered as substrate, corn straw flour and wheat bran as carbon and nitrogen source. At the same time we selected the solid fermentation medium and conditions which benefited strain B3512 colonization and proliferation. The last formula was wheat bran: corn straw powder: turmeric at the ratio of 20:10:6. And when the inoculum size of phenolic acid degradation fungi B3512 was 20%, optimum temperature was 32℃, initial moisture content was 50%, initial pH was 7.0, B3512 had the highest reproductive capacity and the highest number of viable cells.