Moustafa, M., lsmail, A., Ahmed, F. (2002). ISOLA nON OF INDIGENOUS BIOAGENTS AND ESTIMATION OF THEIR EFFICIENCY FOR CONTROL of some SOIL- AND AIR-BORNE FUNGI OF CUCURBITS. Journal of Plant Protection and Pathology, 27(11), 7777-7787. doi: 10.21608/jppp.2002.256026
M. S. H Moustafa; A. A. lsmail; F. A. M. Ahmed. "ISOLA nON OF INDIGENOUS BIOAGENTS AND ESTIMATION OF THEIR EFFICIENCY FOR CONTROL of some SOIL- AND AIR-BORNE FUNGI OF CUCURBITS". Journal of Plant Protection and Pathology, 27, 11, 2002, 7777-7787. doi: 10.21608/jppp.2002.256026
Moustafa, M., lsmail, A., Ahmed, F. (2002). 'ISOLA nON OF INDIGENOUS BIOAGENTS AND ESTIMATION OF THEIR EFFICIENCY FOR CONTROL of some SOIL- AND AIR-BORNE FUNGI OF CUCURBITS', Journal of Plant Protection and Pathology, 27(11), pp. 7777-7787. doi: 10.21608/jppp.2002.256026
Moustafa, M., lsmail, A., Ahmed, F. ISOLA nON OF INDIGENOUS BIOAGENTS AND ESTIMATION OF THEIR EFFICIENCY FOR CONTROL of some SOIL- AND AIR-BORNE FUNGI OF CUCURBITS. Journal of Plant Protection and Pathology, 2002; 27(11): 7777-7787. doi: 10.21608/jppp.2002.256026
ISOLA nON OF INDIGENOUS BIOAGENTS AND ESTIMATION OF THEIR EFFICIENCY FOR CONTROL of some SOIL- AND AIR-BORNE FUNGI OF CUCURBITS
1Plant Pathology Res. Inst Agric. Res. Center, Giza ,Egypt
2Pesticides Department, Fac. of Agric. Kafr EI-Shelkh, Tanta Univ., Egypt
Abstract
In order to save the Egyptian ecosystem from poUution with pesticides. Five bioagents were Isolated from the Egyptian soil. These bioagents were identified as Trichodenna hamatum, Gliocladium virens, BaciHus suM/is, Pseudomonas truo19scens and Streptomyces sp. The isolates proved to be antagonistic to Rhizoctonia so/ani, Pythium sp. and Fusarium sp. in vitro. Under field conditions, good control of soil borne diseases of cucurbits was achieved as a result of these bioagents. The application of bloagents as seed coat resulted in higher efficiency than applying them as soil drench. The bioagents affected positively the root system and the foliage.
A new method to asses the bioagent antagonistic potency in vitro, was developed. The bloagents showed satisfactory control of downy mildew disease on cucumber and powdery mildew on squash, with significant Increasing in the yield. In all cases the fungicides showed better results.
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