Downy Mildew of Cucurbits and Their Management

Khare, C.P.; Srivastava, J. N.; Tiwari, Praveen Kumar; Kotesthane, A.; Thrimurthi, V. S.

doi:10.1007/978-81-322-2571-3_5

Cited by 1 publication

(1 citation statement)

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“…The application of chemical pesticides is the most commonly used control method, either through using contact and systemic fungicides or the combination of both 10 . However, the new trends are directed towards the integrated pest management (IPM) 11 , which includes the application of alternative products such as resistance inductors (i.e., Trichoderma atroviride) 12,13 or beneficial microorganisms such as Bacillus subtilis, Pseudomonas fluorescens, Derxia gummosa and Trichoderma harzianum 12,14 .…”

Section: Introductionmentioning

confidence: 99%

Development of an ecological strategy for the control of downy mildew (Pseudoperonospora cubensis) in cucumber cultivation (Cucumis sativus L.)

Gabriel-Ortega

Pereira-Murillo

Ayón-Villao

et al. 2015

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Downy mildew is a severe disease of cucumber worldwide. The oomycete Pseudoperonospora cubensis cause it and once it is established in a region, the infection spreads rapidly, causing significant loss of yield and fruit quality. The objective of the research was to develop an ecological strategy for the control of downy mildew in cucumber. The treatments were arranged in a completely randomized experimental design with an alternation of chemical and biological fungicides. The treatments were: T1: systemic fungicide (Ridomil Gold, 2.5 g/l) alternating with a contact fungicide (Bravo 2.5 ml/l), T2: CustomBio 5 (Bacillus-based fungicide, 3ml/l), T3: control (water), T4: Trichoderma sp. (3 ml/l), T5: systemic fungicide (Ridomil Gold 2.5g/l) alternating with CustomBio 5 (3 ml/l), and T6: systemic fungicide (Ridomil Gold 2.5g/l) alternating with Trichoderma sp. (3 ml/l). The following variables were evaluated: stem thickness, plant height, number and weight of fruits, yield, the area under the relative progress curve (AUDPCr), and economic analysis of each treatment. The results showed that the best treatments were T1 and T6, with an AUDPCr of 11.89% and 12.10%, respectively. Treatments T6 and T1 showed the best yield, as well. The profitability analysis showed that all the alternatives were profitable with a Benefit/Cost>1 ratio. However, the treatments T6 and T1 were the most useful. We recommend this control strategy to reduce the use of chemical fungicides and, at the same time, obtain an efficient control of the disease, which guarantees a significant yield of high-quality fruit.

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Section: Introductionmentioning

confidence: 99%