Powdery mildew in Watermelon
Powdery mildew is fungal disease characterized by white, cottony patches (colonies) of mycelium and conidia (asexual spores) on the surface of the plant on both sides of the leaves.
Powdery mildew disease is more prominent in regions with high nitrogen fertilization.
Cool, moist weather conditions with high relative humidity more than 97% enhance germination of powdery mildew infection. 15oC to 22oC is the best range of temperatures for development of powdery mildew.
Sprays to manage Powdery mildew disease
1. Hexadhan 2 gm/L + V-Kure 2 gm/L + Raccolto Spraywell 1 mL/L
https://www.bighaat.com/products/dhanuka-hexadhan-fungicide + https://www.bighaat.com/products/v-kure-fungicide-bactericide + https://www.bighaat.com/products/dow-spraywell-surfactant-adjuvant
- Elixir 3 ml/L + Econeem plus – 1 % - 1 mL/L
https://www.bighaat.com/products/elixir-fungicide + https://www.bighaat.com/products/econeem-plus-azadirachtin-10000-ppm-biopesticide
Biological control may be done with
a. Ecoderma 10 gm/L + Bactosan 2 gm/L
https://www.bighaat.com/products/ecoderma-trichoderma-viride-biopesticide + https://www.bighaat.com/products/bactosan-bio-stimulant
K SANJEEVA REDDY,
Senior Agronomist, BigHaat.
Disclaimer: The performance of the product (s) is subject to usage as per manufacturer guidelines. Read enclosed leaflet of the product(s) carefully before use. The use of this product(s)/ information is at the discretion of user.