Chemical control of pepper mildew Phytophthora capsici (Leon), on early peppers in Tunisia
Peper mildew, caused by Phytophthora capsici, is a serious problem in the intensive early cultures of the Tunisian Nebhana region. In experiments done in very severe conditions of contamination, the best control was obtained by a weekly soil drench (100 ml per plant) with the commercial metalaxyl +...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Presses Agronomiques de Gembloux
1986-01-01
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| Series: | Tropicultura |
| Online Access: | http://www.tropicultura.org/text/v4n1/15.pdf |
| Summary: | Peper mildew, caused by Phytophthora capsici, is a serious problem in the intensive early cultures of the Tunisian Nebhana region. In experiments done in very severe conditions of contamination, the best control was obtained by a weekly soil drench (100 ml per plant) with the commercial metalaxyl + maneb mixture (40 g + 192g. hh1). The protection continued up to 5 weeks after the end of the treatment. The action of foliar sprayings was slower and not remanant. The effectiveness of captafol and phosethylaluminium soil drenches (0.2g and 0.4 g per plant) was poor. An improvement of the control was obtained by diluting a dose of 0, 4g captafol per plant in a greater quantity of water (500 ml). Phytotoxic symptoms appeared on the leaves ofthe pepper plants after all metalaxyl + maneb treatments, but not after the other fungicide applications. |
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| ISSN: | 0771-3312 |