Soap solutions are an all-purpose way to get rid of numerous types of garden pests, including aphids on watermelon plants. Mix 1 tablespoon of liquid castille soap in 1 gallon of water, shake it well and spray all leaf surfaces, including the undersides of the leaves.
What do you spray watermelon plants with?
Contact fungicides should be the backbone of most cantaloupe and watermelon spray schedules. Two contact fungicides for this purpose have the active ingredient chlorothalonil or mancozeb. They may be used all season-long.
What is the best fungicide for watermelon?
The best fungicides are Flint Extra, Cabrio, mancozeb, or chlorothalonil.
What kind of pesticides are used on watermelon?
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 protect watermelon plants?
Coolong stresses that the best way to protect vines is to turn them back in drive rows. Watermelon fields are set up in several groups of five or six beds that are divided by larger drive rows, which make the vines accessible by farm equipment.
How do you treat watermelon leaf blight?
Fungicides that contain azoxystrobin, boscalid, chlorothalonil, copper hydroxide or potassium bicarbonate have shown to be very effective in controlling watermelon alternaria leaf spot when used regularly and in combination with proper sanitary practices.
How do I keep bugs from eating my watermelon?
Place melon cages over your watermelon plants to protect them from birds and animals. Spread a 3-inch (7.5 cm) layer of cedar or cypress mulch in your garden to naturally deter insects. Spray watermelon plants with insecticidal soap or neem oil to kill pest insects.
What causes brown spots on watermelon leaves?
Cercospora leaf spot is a disease caused by the fungus Cercospora citrullina. It can affect all cucurbit crops (like cucumber and squash) but it is especially common on watermelons. The fungus usually only affects the leaves of the plant, though it can occasionally spread to the petioles and stems.
What causes black spots on watermelon leaves?
Anthracnose – This seed-borne fungus is hard to detect initially, as it may only appear as small spots on your plants and fruits. As it grows, these spots expand and turn black or gray and new sunken areas may appear on your fruit.
How do you increase watermelon fruit size?
To maximize the size of the melon, water the plants regularly in deep water sessions that keep the soil moist. Side dress the Watermelon plants with fertilizer prepared for edible crops or fertilizer tea to feed the plants. Fertilizer encourages growth to produce large melons.
What are the common pest in watermelon?
Insect pests of watermelon: A number of insect species including caterpillars, mites and thrips can cause damage to the plants but are readily controlled using registered insecticides. Aphids can be very damaging as they are the vector for mosaic viruses. Sucks sap and weakens plant.
Do watermelons get sprayed with pesticides?
According to the Environmental Working Group’s Shopper’s Guide to Pesticides in Produce, watermelon clocks in at number 32 on the list, meaning that its pesticide load can be relatively high.
Can you put Sevin dust on watermelon plants?
Answer: Sevin Dust 5% – 3 Pack is not labeled for applications to watermelons. Please provide the targeted pest for an alternate recommendation.
Should I trim my watermelon vines?
Pruning watermelons promotes healthier vines and increases fruit size. Look for irregular or rotting fruit to prune from the plant. Removing the less than perfect melons will enable the plant to focus energy towards growing bigger, healthier, juicier melons.
How often should water watermelon plants?
Watering 1–2 times each week works best for healthy watermelon plants. Aim to keep the soil evenly moist at all times—not too dry and not too wet. Give your young watermelon vines 2 inches (5 cm) of water every week. Decrease water to 1 inch (2.5 cm) weekly once fruit sets on the vines.
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 causes yellowing of watermelon leaves?
Yellowing Leaves in Watermelon
Nitrogen Deficiency – Both young and old leaves can show signs of nitrogen deficiency and may appear any shade of lighter green to yellow. This is common during both dry spells and when plants simply aren’t being fed enough.
What causes leaf blight?
Leaf blight disease is caused by the fungus Helminthosporium turcicum Pass. The disease develops on sorghum leaves particularly under humid conditions by producing reddish-purple or tan spots that coalesce to form large lesions. It attacks seedlings as well as older plants.
What are the yellow spots on my watermelon leaves?
Yellow spots on watermelon leaves are early symptoms of powdery mildew.
How do you make insecticidal soap?
By mixing 2.5 tablespoons of vegetable oil and 2.5 tablespoons of pure liquid soap with 1 gallon of distilled water, you’ll have a whole gallon of insecticidal soap for safely spraying plants in flowerbeds or the vegetable garden.
How do I get rid of aphids naturally?
HOW TO GET RID OF APHIDS NATURALLY
- Remove aphids by hand by spraying water or knocking them into a bucket of soapy water.
- Control with natural or organic sprays like a soap-and-water mixture, neem oil, or essential oils.
- Employ natural predators like ladybugs, green lacewings, and birds.