WaterMelon – Page 3

Control of white fly in watermelon

Nymphs and adults suck the cell sap from the leaves.
The affected leaves curl and dry.
The affected plants show stunted growth.
Whiteflies are also responsible for transmitting yellow vein mosaic virus or leaf curl disease.
4-5 foliar spray of dimethoate 30% EC @ 300 ml/acre or profenophos 50% EC @ 400 ml/acre at 10 days intervals.

30/03/2020

Watermelon contains 92% water, which keeps the body cool, fresh and hydrated.
Its consumption also protects us from hot air (Loo) in summer.
Watermelon contains antioxidants that strengthen the immune system. It also reduces calories which controls obesity.
Vitamin C is found in plenty in watermelon, which helps in the formation of the upper skin of the body and care, and vitamin C increases the body’s ability to fight against diseases.
Its intake helps to balance blood pressure.

Following steps can reduce the growth of Red spider mites in watermelons-

Spray neem oil on the under surfaces of the leaves in the early morning, ideally before sunrise.
Spray Proparite 57% EC @ 400 ml/acre or
Spray abacin (Abamectin 1.8% EC) @ 150 ml/acre

Larvae, nymphs and adults of mites lacerate leaves from their downside.
They suck the cell sap resulting in the production of white patches between vein and leaves.
In case of extreme infection, mites form a mesh structure on the lower surface of the leaves.

Pinches are made to prevent overgrowth of watermelon from the plant.
When there is enough fruit on the oxen of watermelon, then there should be a solution to pinch, which can prevent the bull from failing.
Pinching and cutting unwanted wounds results in good nutrition for the fruit and the development of the fruits is good.
If there are too many fruits on a vine, then remove the small and weak fruits so that the normal fruit gets better.
By removing unnecessary branches, watermelon gets complete nutrition and it grows very fast.

Choose healthy seeds.
Inspect transplantation and uproot the infected plants and leave the farm out of the field.
spray chlorothalonil 75% WP @ 350gm / acre or
spray tebuconazole 25.9% EC @ 200 ml / acre solution.

In this disease, infection is visible on almost every part of the plant except the roots.
A Yellowness/greenness occurs at the edges of the leaves, while spots start occurring on their surfaces.
The wound is formed on the stem of the plant which is infected by this disease. Then a black-coloured gummy substance starts releasing from this wound.
On the string, brown spots become black spots which later go to the wound.
In bottle gourd seeds have medium-brown, dark spots.

Plucking and destroying affected leaves helps in reducing Downy Mildew in watermelon crop.
Plant seeds of disease-resistant varieties.
Crop rotation and sanitation reduces the severity of the disease.
Drench with thiophenate methyl 70% WP at the rate of 300 gm/acre.
Spray Metalaxyl 8%+Mancozeb 64% WP at the rate of 500 gm/acre.
Spray pseudomonas fluorescens @ 500 gram/acre.