Powdery mildew is a common and serious disease of cucurbit crops. For registering new environmentally friendly fungicides and with the aim to diversify the available fungicides, the efficacy of Mildew cure (a natural botanical fungicide) was evaluated by trials in compl More
Powdery mildew is a common and serious disease of cucurbit crops. For registering new environmentally friendly fungicides and with the aim to diversify the available fungicides, the efficacy of Mildew cure (a natural botanical fungicide) was evaluated by trials in completely randomized block design with five treatments and four replications in field and glasshouse conditions in Karaj during 2012-13. Treatments were 7.5, 10, and 15 mll-1 of Mildew cure L. 83% alongside with 0.2 gl-1 of Trifloxystrobin (Flint WG 50%) as standard fungicide and untreated control (without any spraying). Foliar applications of fungicides were made at 7 day intervals, started after early symptoms appearance and followed up until symptom expressed in untreated plants in a maximum disease severity index due to Horsfal and Barrat scale. The results were expressed as the foliage protection percentage (FPP) of each presumed area bypowdery mildew based on Horsfal and Barrat scale, then midpoint of presumed areas was calculated for each plot. Analysis of variance of trials data revealed that there are significant differences among different treatments at P<0.05 and P<0.01. Mean comparison of the treatment showed that Mildew cure 10 mll-1 decreased disease by 76.2% compared to untreated control plants in field and Mildew cure 7.5 mll-1 decreased disease incidence by 90% compared to non-sprayed check in glasshouse. Based on the results of this study, these treatments recommended for cucumber powdery mildew disease management.
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In the framework of study on the genus Septoria in Iran, several newly collected and herbarium specimens from Fungal Reference Collection of the Ministry of Agriculture-Jahad (IRAN) located at the Iranian Research Institute of Plant Protection, were studied. Among ident More
In the framework of study on the genus Septoria in Iran, several newly collected and herbarium specimens from Fungal Reference Collection of the Ministry of Agriculture-Jahad (IRAN) located at the Iranian Research Institute of Plant Protection, were studied. Among identified samples, five species viz. Septoria sambuci-ebuli sp. nov. on Sambucus ebulus L., Septoria fatehii sp. nov. on Alhagi sp., Septoriakhalkhalensis sp. nov. on Astragalus sp., Septoria javadii sp. nov. on Rubia sp. and Septoria osipyaniae sp. nov. on Populus sp. are newly described in this paper.
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