The larvae of the melon fly make holes on the watermelon fruits, leaving brown holes that secret liquid. Watermelon fruits eventually rot and detach from the vines. The melon fly also feeds on the leaves and vines of the watermelon plant.
Why does my watermelon have a hole in it?
Researchers at the University of Delaware have found that hollow hearts are mainly caused by inadequate pollination — the lack of enough pollen from pollinizer plants and trouble getting the pollen from its origin to the watermelon.
How do you protect watermelon from pests?
Spray the watermelons with insecticidal soap. The entire plant must be covered with the substance, to the point of runoff. Reapply the product every seven to 10 days.
Is it OK to eat watermelon with hollow heart?
As hollow heart isn’t a disease, but a problem in the pollinating process, if your watermelon is affected by the issue then it should still be safe to eat, according to the experts. In fact, they may taste even sweeter than an unblemished fruit because its natural sugars are concentrated along the cracks in the flesh.
Is it safe to eat watermelon with swirls?
The patterns can be downright magical: Symmetrical swirls and curlicues amid gaps in the sweet, red flesh. To farmers, though, this kind of natural watermelon art—which goes by the name hollow heart—hurts. The fruit is perfectly edible, but a field with too many affected melons can be difficult to sell.
What can you spray on watermelons?
Use Soap Solutions
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 bug is eating my watermelons?
Several reports lately of very deformed watermelon plants, but also a few cucumber and cantaloupe fields. These distortions (fig. 1) most of the time are being caused by melon aphids Aphis gossypii Glover.
How often should I water my watermelon plant?
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.
How do you know when a watermelon goes bad?
The easiest way to tell is to check the skin for any soggy spots and patches of greenish-blue, black, or white mold. Even if the exterior looks OK, there’s a chance that the fruit could have gone bad. If the flesh has noticeable dark spots or is covered in anything slimey, you should toss it.
What causes white heart in watermelon?
It is most common in watermelon, early on in the season, when conditions quickly alternate between wet and dry, or cold and warm. Too much nitrogen and excessive moisture during fruit set can encourage hollow heart and lead to a melon with a bland taste.
Is a hollow watermelon good?
1. Do a thump test. A ripe watermelon should have a deep hollow sound when you thump the rind with your hand, similar to a knock on the door. An unripe melon will have a more high-pitched resonance, whereas an overripe melon will sound more like a thud.
Is watermelon mosaic virus harmful to humans?
Are squash and melons affected by mosaic virus safe to eat? “Yes,” says Nebraska Food Safety Educator Carol Larvick, citing information from Minnesota Extension. “These viruses are specific to plants and do not harm humans.
Why does my watermelon have swirls inside?
The science behind this strange looking watermelon may surprise you. At first glance, it looks like someone has taken a lot of time to carve a strangely intricate pattern on the inside of this watermelon. In reality, what’s happened to this watermelon is a natural condition called “hollow heart.” That’s right.
What should not be eaten with watermelon?
Avoid mixing your watermelons, muskmelons, cantaloupe and honeydews with other fruits. Try not to mix acidic fruits, such as grapefruits and strawberries, or sub-acidic foods such as apples, pomegranates and peaches, with sweet fruits, such as bananas and raisins for a better digestion.
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.
How do you take care of watermelon plants?
Keep soil moist, but not waterlogged. Water at the vine’s base in the morning, and try to avoid wetting the leaves and avoid overhead watering. Reduce watering once fruit are growing. Dry weather produces the sweetest melon.
What eats watermelon in the garden?
The two main pests that affect watermelons are aphids and cucumber beetles. Not only do these insects feed on the plants but they can also transmit viruses from plant to plant, which is often more damaging than the insect’s feeding. There are many different aphid species.
What is a watermelon worm?
Melon worms are elongate greenish larvae with darker head that cause severe feeding damage to vines and fruit of most melons. Closely related to the pickle worm that attack cucumbers. In areas that never receive frost (southern Texas and Florida), melon worms may be a year round problem.
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 make my watermelon sweeter when growing?
Heat brings out melons’ sweetness, so make sure to plant them in a location that warms up early in spring and stays hot through the end of September. The south side of a fence or wall is ideal as the structure will absorb heat and light from the sun and reflect it back onto the melons.
What is the best fertilizer for watermelons?
Choosing the best fertilizer for watermelon is the key to a quality harvest.
- BEST OVERALL: Dr.
- BEST BANG FOR THE BUCK: Espoma Garden Tone 3-4-4 Plant Food.
- PREMIUM PICK: Organic Plant Magic Super Premium Plant Food.
- BEST ORGANIC: Jobe’s Organics Granular Fertilizer.
- BEST LIQUID: Neptune’s Harvest Hydrolyzed Fish Fertilizer.