Effect of Combination between Bioagents and Solarization on Management of Crown-and Stem-Rot of Egyptian Clover

摘要: Fourteen isolates of Trichoderma sp. and eight Bacillus sp., isolated from a field has severe infection by stem crown-rot Egyptian clover plants were screened for their efficacy against the fungus Sclerotinia sclerotiorum Lib. de Bary, causal crown stem-rot clover, in vitro vivo. In general, spp. more efficient reducing radial growth S.sclerotiorum than spp opposite was found case sclerotial germination. addition, B.thuringiensis T.harzianum showed maximum percentages inhibition viability. Meanwhile, B. pumilus T.viride resulted lowest viability . The tested bioagents, i.e. B.thuringiensis-1 T.harzianum-3 as well soil solarization significant reduction to severity with increase green forage yield compared control treatment. T.harzianum-3. ,when each them applied alone. Moreover, combination among + most this regard, which no apparent detected highest obtained. However, between any bioagents intermediate effect regard.