STUDY OF PLANT DIFFUSATES WITH ANTIFUNGAL ACTIVITY FOR CONTROLLING EARLY BLIGHT DISEASE ON TOMATO PLANT | ||||
| Journal of Plant Production | ||||
| Article 11, Volume 29, Issue 6, June 2004, Page 3269-2378 PDF (1.06 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238655 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. G. EI-Samman, | ||||
| Dept. of Plant Pathology, Faculty of Agric., Ain Shams, Univ., Egypt. | ||||
| Abstract | ||||
| This study was conducted in the Faculty of Agriculture Orner AI·Mukhla( University. EI-Beido City-Libya during the period from 1998-1999 Plant diffusatss were tested tor their fungicidal action to control early blight disease of tomaot causing by Altemaria solani that was wide spread in this region. Aqueous diffusates from different parts of 21 ptant species in a concentration of oo', 10"2 and 10'1 were tested on conidial germination. number of germ tubes and germ tube length of Altemaria sotet». Results indicated that the diffusates of Trigonella faenumgraecum. Allium sativum, Capsicum annaum, Thymus vulgaris and Thapsis garganica inhibited comp!etely spore germination at low concentration, while other diffusates had little effect on such phenomena. Tomato plants were sprayed under field condition by the best five plant diffusated in addition to control plants sprayed by water and other plants were sprayed by Rovral (0.15%) or Dithane M4s (O.25%) to lest their efficacy on the disease incidence of early blight on three tomato cultivars. Results showed that diffusates of Thapsia garganica. Rivoral and Dithane M45 gaves the high level of protection and led to decrease disease incidence and increased plant yield. Results also indicated than no significant differences was observed between the other diffusates on the percentage of infection. Results indicated also that Dithance M45 was the best fungicide against early blight under field condition in reducing disease incidence and increased plant productivity. | ||||
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