Watermelon: Diseases and Symptoms
- Downy mildew.
- Powdery mildew.
- Anthracnose.
- Alternaria leaf spot.
- Fusarium wilt.
- Bud necrosis disease.
- Cucumber mosaic disease.
- IPM for Watermelon.
What is the best fungicide for watermelon?
The best fungicides are Flint Extra, Cabrio, mancozeb, or chlorothalonil.
What are the diseases that affect watermelon?
Watermelon Diseases
- Disease Management Strategies.
- Anthracnose (Colletotrichum obiculare)
- Bacterial fruit blotch (Acidovorax citrulli)
- Cercospora leaf spot (Cercospora citrullina)
- Downy mildew (Pseudoperonospora cubensis)
- Fusarium wilt (Fusarium oxysporum f.
- Gummy stem blight (Stagonosporopsis cucurbitacearum)
How do you control the watermelon virus?
Control insecticide use in order not to affect beneficial insects. Control ant populations that protect aphids with sticky bands. Check weeds and alfalfa in and around the fields. Use plastic mulches that repel aphids to reduce losses due to the disease.
What is killing my watermelons?
So in this article, let’s take a look at common reasons why watermelons can die, and what to do about them. The most common reasons for watermelon plants dying include incorrect soil, watering issues, not enough sunlight, or planting issues. Temperature, weeds, diseases, and pests can also play a role.
When is the best time to spray fungicide?
The higher the temperature and lower the relative humidity, the greater the opportunity for fungicide evaporation or volatilization. This can be avoided by spraying early in the morning when temperatures are lower and the relative humidity is higher.
What fertilizer should I use for watermelon?
When fertilizing watermelon plants, use nitrogen based fertilizer at the onset. Once the plant begins flowering, however, switch to feeding the watermelon a phosphorus and potassium based fertilizer. Watermelons require ample potassium and phosphorus for optimal melon production.
What bacteria grows on watermelon?
Melons and food poisoning
Contaminated melons have been linked to cases of food poisoning caused by Salmonella bacteria.
What causes watermelon rot?
Watermelon blossom end rot isn’t caused by a pathogen; it’s the result of fruit that lacks the correct amount of calcium to develop properly. When fruits are growing rapidly, they need lots of calcium, but it doesn’t move through the plant very well, so if it’s not available in the soil, they will be deficient.
What causes holes in watermelon?
» Hollow heart of watermelon is caused by inadequate pollination of female flowers. » Watermelon varieties with dense fruit flesh are less susceptible to hollow heart. » Hollow heart is more common on fruit that is set early in the season.
What to spray on watermelons for bugs?
Insecticides Insecticides used in watermelon are: abamectin, esfenvalerate, diazinon, dimethoate, carbofuran, dicofol, methomyl, permethrin, carbaryl, endosulfan, imidacloprid, bifenthrin, beta-cyfluthrin, thiamethoxam, spiromesifin, fenpropathrin, dinotefuran, spintor, vydate, and fulfill.
How do you control bacterial wilt in watermelon?
The best control for Fusarium wilt of watermelons is the use of resistant varieties coupled with crop rotation. Long rotations (five years or more) may lessen the survival rate of the fungus spores in the soil and decrease the severity of symptoms.
How do you save a dying watermelon plant?
If the soil and the plant’s roots are allowed to dry out, the vines and leaves will wilt, then shrivel up and die. Add a thick layer of mulch around the plants to conserve water and slow evaporation from the soil.
What do Overwatered watermelons look like?
If rainfall is heavy, watermelons may swell too quickly for the plant to keep up with the extra water content. When this happens, the rind of the watermelon may split or burst as a result of the excess water building up inside of it. Once this has happened, the watermelon is ruined.
What does an infected watermelon look like?
Bacterial fruit blotch infection on mature watermelon fruit appears first as a small, dark green stain on the upper surface, left. Initially the infection does not extend past the rind.
Do watermelons need a lot of water?
Typically, watermelon plants need 1-2 inches of water per week so that the soil stays moist but not wet. If you’re not getting enough rain each week, make sure you give your plants an extra drink.
What is the most effective fungicide?
“Triazole fungicides are the most widely used fungicide class in the world,” says Mueller. These locally systemic fungicides move up and down the plant but not in the leaf. Triazole fungicides (Folicur, Domark) inhibit an enzyme that plays a role in fungi sterol production.
Which is the best fungicide?
- Anshul DOST (Carbendazim 12% + Mancozeb 63% WP)
- Marlett M 45 (Mancozeb 75% WP)
- Syngenta Amistar (Azoxystrobin 25% SC)
- Syngenta Thionutri Fungicide.
- Syngenta Abic (Mancozeb 75 % WP)
- Coromandal Jatayu (Chlorothalonil 75% WP)
- Syngenta Splash (Chlorothalonil 75% WP)
- Syngenta Divident (Difenoconazole) – 80GM.
Can I spray fungicide and fertilizer at the same time?
You can apply fungicide and fertilizer simultaneously if you are applying a fungicide that needs to be watered into your lawn. Granular fertilizer requires water to break it down and cause it to enter the soil. If you are using a fungicide that is also activated by water, it will benefit from this process.
What helps watermelon grow?
Watermelons do best in loamy, somewhat-sandy, well-drained soil. They can struggle in soil that contains too much clay and doesn’t drain well. Watermelons prefer a soil pH between 6.0 and 7.5 (“slightly acidic to neutral”). Watermelons need A LOT of space—up to 20 square feet per plant.
What is the secret to growing watermelons?
Watermelons usually do best in loamy, somewhat sandy, and well-drained soil. Watermelons prefer a soil pH between 6.0 and 7.0 that is slightly acidic. Growing the vines in raised rows, referred to as hills, also ensures good drainage and it can easily hold the sun’s heat longer.