
You may be surprised to find out but ladybugs and lacewings will eat cucumber beetle eggs! They are very helpful for getting rid of cucumber beetles but they also eat many other pests like cabbage worms and flea beetles. What attracts cucumber beetles the most?
What kind of bugs eat cucumbers and squash?
Cucumber, Squash, Melon & Other Cucurbit Insect Pests. Cucumber Beetles. Cucumber beetle damage can occur on the watermelon fruit. The spotted, striped and banded cucumber beetles are very harmful to cucurbits (members of the gourd family, including cucumbers, melons, pumpkins and squashes), particularly young plants.
What kind of bugs eat cucumbers in Minnesota?
Striped cucumber beetles and spotted cucumber beetles are pests in Minnesota Both species can be found on cucurbits (squash, cucumbers, melons, etc.). Cucumber beetles can damage foliage and fruit.
Do cucumber beetles eat cucumbers?
Cucumber beetles will gnaw cucumber leaves, stems, fruits, and flowers. Failure to spot and eliminate this pest will result in the death of the plant. Aside from their foraging habits, Cucumber Beetles also bring bacterial wilt as well as cucumber mosaic. Both of these are diseases that are not incurable once it infested a plant.
What are the symptoms of cucumber beetles?
Examples of symptoms caused by cucumber beetles include: Stunted seedlings and growth. Damaged leaves, stems, or petioles. Reduced plant strength. Scars on the fruit. Cucumber beetles are a challenge to handle, but there are a few things you can do.

What eats a cucumber beetle?
Natural predators include beneficial insects like braconid wasps, some nematodes, and soldier beetles. Companion planting your vegetables with flowers can help to keep pests away from the plants you don't want the beetles to attack.
What kills the cucumber beetle?
A combination of pyrethrin insecticides and neem can effectively manage cucumber beetle, though you will likely need to apply more than once. Pyrethrins are contact insecticides that will kill most insects, including beneficials, so take care to apply either early or later in the day.
How do I protect my cucumbers from beetles?
Use a physical barrier. You can try to protect your cucurbits by building a floating row cover or similar barrier during early to mid-June to keep the striped cucumber beetles away from your plants. Be sure to remove the barrier when cucurbits start to flower.
Do ladybugs eat cucumber beetles?
Beneficial Insects You may be surprised to find out but ladybugs and lacewings will eat cucumber beetle eggs! So make sure you plant lots of flowers around your garden that attract these helpful insects to your garden.
What do cucumber beetles hate?
You can use your normal straw or hay mulch or use the foliage from plants that repel cucumber beetles like radishes, tansy and nasturtium. You can also plant radishes, tansy and nasturtium amongst your cucurbits to make them less inviting to cucumber beetles.
What attracts cucumber beetles the most?
Cucumber beetles are attracted to host plants by a chemical called cucurbitacin, which gives cucurbits their bitterness and likely is used as a defense against less-specialized herbivores (Deheer and Tallamy, 1991).
Will neem oil get rid of cucumber beetles?
Neem oil is an effective organic pesticide that can be used to control cucumber beetles early on. Neem oil works by disrupting the development of the beetle, preventing them from feeding and reproducing, causing them to die from starvation.
How long do cucumber beetles last?
about 8 weeksThey are easily identifiable by their yellow color and black spots or stripes. Cucumber beetles have a lifespan of about 8 weeks and are especially active in the springtime when the stems and leaves of the plants are young and tender.
Does peppermint oil repel cucumber beetles?
5:067:49Using Peppermint Oil on Cucumbers - Recipe, Stopping Spider Mites & MoreYouTubeStart of suggested clipEnd of suggested clipIt also masks the scent of the plant when we cut these leaves. Pheromones are released maybeMoreIt also masks the scent of the plant when we cut these leaves. Pheromones are released maybe cucumber beetles follow it.
Do praying mantis eat cucumber beetles?
A: People buy praying mantises to control common vegetable garden pests — cucumber beetles, aphids, spider mites, relatively small prey. Praying mantises are pretty big. They might eat a cucumber beetle but not a beetle or spider mite.
Do yellow sticky traps work on cucumber beetles?
Yellow Trap Pest #1: The Cucumber Beetle Something yellow that would attract them, and something sticky to trap them.
Do cucumber beetles bite humans?
CUCUMBER BEETLES IN THE HOME ^ From there these beetles will find their way into living areas and become a pest. Though they don't bite or cause damage, they can be annoying.
Will neem oil get rid of cucumber beetles?
Neem oil is an effective organic pesticide that can be used to control cucumber beetles early on. Neem oil works by disrupting the development of the beetle, preventing them from feeding and reproducing, causing them to die from starvation.
How do you trap cucumber beetles?
For the live beetle traps, cut out two sides of a plastic container and hot glue mesh in its place to provide ventilation (Figure 3). Drill two holes near the top to attach a rope for hanging and use hot glue to seal any gaps. Each trap should contain ten striped cucumber beetles collected from a field.
Is Sevin good for cucumber beetles?
Sevin Insect Killer Concentrate provides a simple, economical way to provide large-scale coverage of vining cucurbits or other cucumber beetle targets. Use with a pump-style sprayer, and spray plant surfaces thoroughly to kill listed pests by contact and protect against cucumber beetles for up to three months.
Does peppermint oil repel cucumber beetles?
5:067:49Using Peppermint Oil on Cucumbers - Recipe, Stopping Spider Mites & MoreYouTubeStart of suggested clipEnd of suggested clipIt also masks the scent of the plant when we cut these leaves. Pheromones are released maybeMoreIt also masks the scent of the plant when we cut these leaves. Pheromones are released maybe cucumber beetles follow it.
Do rabbits eat cucumbers
Do you have rabbits in your garden, in the same place as your cucumber plants? Sometimes rabbits can be the ones to attack your vegetables. Just feed them (carrots, for example) and they will stop attacking your vegetables.
Do squirrels eat cucumbers
It is very unlikely that squirrels will attack your cucumber plant, as they already have plenty of nuts and other food to survive.
Do turtles eat cucumbers
When it comes to turtles, it’s already more likely that they will feast on your cucumbers, however, they are very slow to eat, so it is not very complicated to catch them red-handed. A simple solution; feed them lettuce.
Other animals and insects that eat your cucumbers
From the little grey one to the big red one, slugs are a gardener’s nightmare. The damage caused by these mollusks can be seen very quickly: the tender leaves of the vegetables are eaten and the young seedlings disappear, leaving traces of mucus (slime) in their place.
What are cucumber beetles?
Cucumber beetles can attack cucumbers from the moment they sprout. Spotted, striped or banded insects, cucumber beetles eat all parts of cucumber plants and feed throughout the season. Beetle species include spotted cucumber beetle (Diabrotica undecimpunctata howardii), which is yellowish-green and has 11 black spots and a black head, and striped cucumber beetle (Acalymma vittatum), which is yellow with three black stripes from head to tail. The beetles are generally less than 1/4 inch long, but a heavy infestation can slow plant growth or kill cucumber plants. Cucumber beetle larvae feed on plant roots, and the beetles transmit cucumber bacterial wilt, which overwinters in their intestines. Remove weeds to reduce hiding places for the insects and hand pick beetles from plants, dropping them into a bucket of soapy water.
What pests can you get from cucumbers?
Covering rows with floating fabric row covers until flowering begins and blasting bugs off cucumbers with a hose provides an environmentally friendly control for some pests, such as cucumber beetles, aphids and spider mites.
How big do cucumbers get?
These annual vines or bushes can grow 12 to 18 inches tall and spread 3 to 8 feet wide. Covering rows with floating fabric row covers until flowering begins and blasting bugs off cucumbers with a hose provides an environmentally friendly control for some pests, such as cucumber beetles, aphids and spider mites. Using harsh insecticides can kill beneficial insects like lady beetles, predatory mites and minute pirate bugs, which control pest problems naturally.
What are melon aphids?
Melon aphids (Aphis gossyppi) in particular target cucumbers and related plants, clustering on the undersides of leaves and causing curled leaves, which turn brown and die. Ranging in color from black to green and light yellow, melon aphids usually attack after the cucumber plants form runners, which are the side shoots that grow along the ground.
How do you know if you have aphids on cucumbers?
The first sign of an aphid infestation may be a sticky excretion, called honeydew, covering the leaves. Cucumber beetles can attack cucumbers from the moment they sprout. Cucumber beetle larvae feed on plant roots, and the beetles transmit cucumber bacterial wilt, which overwinters in their intestines.
What is the mite that kills cucumbers?
Two-spotted spider mites (Tetranychus urticae) target cucumbers and can stunt plant growth and kill plants.
What do spider mites eat?
Spider mites eat the contents of individual leaf cells , and symptoms progress from tiny spots to overall leaf yellowing, bronzing and death. Inhabiting the undersides of leaves, spider mites are tiny and difficult to see without a magnifying glass, but damage can become extensive before you notice the infestation.
What do cucumber beetles eat?
As they grow into adults (mid-July to September), the beetles will once again feed on the leaves, vines, and fruit of plants that survive, leaving deep marks in the rind. Cucumber beetles hold another threat too: They can spread bacterial diseases and viruses from plant to plant, such as bacterial wilt or mosaic virus.
What to use to catch cucumber beetles?
Use yellow sticky traps to catch cucumber beetles and other pests.
Why are my cucumbers yellowing?
If you find that the stems of your seedlings are being eaten off, leaves are yellowing and wilting, and holes are appearing, you may have a striped or spotted cucumber beetle problem. Striped cucumber beetles are specialists on cucurbits (such as cucumbers, squash, pumpkin, watermelons) while spotted cucumber beetles feed on other plants in addition to cucurbits.
What insecticides are effective against cucumber beetles?
Folk advice from The 1963 Old Farmer’s Almanac states that nasturtiums and wood ashes are effective against cucumber beetles. Spotted cucumber beetle.
How to keep cucumber beetles from migrating?
Planting trap crops (cucurbit varieties highly attractive to cucumber beetles) at the perimeter of the harvested crop can keep cucumber beetles from migrating into the harvested crop. Where cucumber beetles are a problem, let the beetles come out of hiding and plant late. They have a knack for finding vulnerable seedlings.
How long are cucumber beetles?
Adult striped cucumber beetles are about ¼ inch long and have a yellow-and-black–striped abdomen and a dark-colored head and antennae. Spotted cucumber beetles are the same length but have 12 black spots on a yellow abdomen. The larvae are worm-like, white, dark-headed, and have three pairs of legs on the thorax.
Where do cucumber beetles overwinter?
Adult cucumber beetles overwinter in weeds, garden debris, and woody areas. The diseases they carry can also overwinter internally, and can be passed onto plants the next spring through fecal matter.
What do cucumber beetles eat?
Spotted cucumber beetles ( Diabrotica undecimpunctata) Both of these species feed on cucumber plants, eating holes throughout the leaves and flowers of your plant. The larvae feed on the plant roots. Cucumber beetles lead to various symptoms and problems, some of which look similar to bacterial wilt.
What are the flies that eat cucumbers?
Whiteflies. Several species of whiteflies infest cucumber plants; greenhouse and Silverleaf whiteflies cause the most damage. The problem with either species is that they’re so small that you need a hand lens to identify them. Whiteflies stick to the underside of the leaves, feeding on the sap of the plant.
What are the caterpillars that chew cucumber leaves?
2. Cabbage Loopers. Don’t forget cabbage loopers ( Trichoplusia ni) when watching for cucumber pests. Cabbage loopers are small, pale green caterpillars with white lines that run down the sides of their body. They chew holes in the leaves, and the damage can be extensive.
How to get rid of aphids on my plants?
Prune away branches and leaves that are heavily infested with aphids. Try spreading reflective mulches, such as silver-colored plastic, around the base of your plants to deter aphids from landing and feeding on your plants. In extreme circumstances, insecticides are required to treat the problem.
Why do cabbage loopers chew holes in leaves?
It’s easy to identify cabbage loopers because they arch their bodies when they move ( earning them the nickname inchworm).
How to get rid of cutworms on cucumbers?
There are a few other things you can do to get rid of cutworms. Make a plastic or foil collar that fits around the plant stems that goes three inches into the soil and three inches above the soil.
Why are cucumbers the best summer crops?
Read the full disclosure. Cucumbers are one of the best summer veggie crops because they’re easy to grow, versatile, and delicious. Cucumber plants produce heavy yields, but even the most seasoned gardener may encounter pests, impacting the harvest. Cucumber pests can cause serious damage to your plants, not only reducing the yield, ...
What do cucumber beetles eat?
Adult feeding is most damaging up to the third true-leaf stages of cucurbit plants. Striped cucumber beetle feeding on new cucumber leaves.
What is the color of cucumber beetles?
Adult spotted cucumber beetle ( Diabrotica undecimpunctata howardi) Similar in size, shape and color. Instead of stripes, this beetle has 12 black spots on its wing covers. Larvae of both species are small (3/8 in) and creamy white colored. Eggs of both species are pale orange-yellow and are laid in groups.
How to treat striped cucumber beetle?
Once striped cucumber beetle numbers build up in these traps, treat them with an effective pesticide to minimize further movement .
Why do cucumbers wilt?
Striped cucumber beetles can carry the bacteria that causes bacterial wilt. The bacterium infects the plants' vascular system and causes plants to wilt. Once the plant is infected, it cannot be saved. Striped cucumber beetles pick the bacterium when they feed on infected weed hosts or infected cucurbits.
How long does it take for a cucurbit to hatch?
Adults return to cucurbit plants and feed on the foliage later in the summer. It takes about 40 to 60 days to go from an egg to an adult.
When do striped cucumber beetles emerge?
Striped cucumber beetles. They live through the winter as adults in leaf litter and emerge in late May to early June. Adults feed on blossoms of flowering plants, mate and lay eggs in the soil at the base of host plants (cucumber, squash, etc.). Eggs hatch in several weeks and larvae feed on plant roots and underground parts of stems.
When do cucumber beetles start to grow?
Cucumber beetles become active in late May or early June and feed on the blossoms of early flowering plants, such as dandelions, apples and hawthorn, until their host crops are available.
What do cucumber beetles eat?
Image by carol2chat Cucumber beetles will eat the leaves, flowers, and fruit of bean, cucumber, melon, asparagus, corn, eggplant, and squash plants and their larva will chew on the roots of these plants.
How to control cucumber beetles?
One method of cucumber beetle control is to use insect predators. Natural predators to cucumber beetles include:
Why is cucumber beetle important?
While there is some damage from this to the plants, the real reason that cucumber beetle control is important to a garden is because cucumber beetles are carriers of cucumber bacterial wilt and cucumber mosaic, which affects squash, melons, and cucumbers. They affect cucumbers the most.
What are the different types of cucumber beetles?
Cucumber beetles actually come in two varieties. While the two varieties look different, their damage is the same. The striped cucumber beetle is either yellowish-green or orangeish-green with three black stripes down its back. The spotted cucumber beetle is also either yellowish-green or orangeish-green with 12 black spots on its back.
How to keep cucumber beetles away from plants?
Controlling cucumber beetles starts with keeping them away from your plants in the first place. The best way how to deter cucumber beetles is with row covers or some other covering on the plant. Cucumber beetles will emerge in mid spring, so row covers should be in place as soon as the plants are put in the ground to protect them from ...
When to spray cucumbers for beetles?
Spray the plants weekly for two to three weeks.
Can cucumber beetles be controlled?
Image by johnandersonphoto. Controlling cucumber beetles is important for your garden if you grow cucumbers, melons, or squash. Damage from cucumber beetles can devastate these plants, but with a little cucumber beetle control, you can keep this harmful pests from destroying your cucumber and cucurbit crops.
What is the color of cucumber beetles?
Ottens, University of Georgia, www.insectimages.org. The adult banded cucumber beetle ( Diabrotica balteata) is yellowish-green with three bright green stripes or bands running across the wing covers. In a home vegetable garden, control measures include the use of fabric row covers, such as spun-bonded polyester.
How many black spots does a cucumber beetle have?
The yellowish-green adult spotted cucumber beetle ( Diabrotica undecimpunctata howardi) has 11 black spots and a black head with black antennae. The yellowish-white larvae have brown heads and are ¾-inch (19 mm) long when grown.
Where do cucurbit beetles feed?
In cucurbit plantings throughout South Carolina, beetles have been observed entering the soil through cracks and feeding on seedlings below the soil surface. Beetles are present throughout the growing season and feed on all parts of the plant, including the flowers and fruit.
How to control squash leaves?
Make two applications five days apart. Squash leaves are easily burned by insecticidal soaps, so use the most dilute concentration recommended and use sparingly. Do not spray plants in direct sun or if plants are drought-stressed. Spider mites can also be controlled with neem oil extract. Mites can be removed with a strong spray of water. Predatory mites and beneficial insects, such as lady beetles and minute pirate bugs, are important natural controls.
What kind of aphids attack cucumbers?
Melon aphids ( Aphis gossyppi) and several other aphid species attack cucurbits, particularly melons and cucumbers. Melon aphids vary in size and color from light yellow to green to black. Some are winged, while others are wingless.
What are the mites on watermelons?
Two-spotted spider mites ( Tetranychus urticae) can be a serious problem on cucurbits, especially on watermelons and cantaloupes, during hot, dry weather. These tiny mites feed on the contents of individual cells of the leaves. This damage appears as pale yellow and reddish-brown spots ranging in size from small specks to large whitish, stippled areas on the upper sides of leaves. Damage can develop very quickly, and the mites can kill or seriously stunt the growth of plants. Because of their small size, spider mites are hard to detect until vines are damaged with hundreds of mites on each leaf. Certain insecticides applied at planting or as a foliar spray for insect control apparently contribute to severe outbreaks of mites on melons by killing their natural enemies.
Why are squash beetles beneficial?
The adult of the squash beetle overwinters in crop debris. All other lady beetles are beneficial because they feed on insect pests, such as aphids and scale insects.
What do cucumber beetles eat?
The adult beetles eat the leaves, flowers, pollen and the larva eats the roots of cucumber plants. The cucumber beetle larva emerges later in the summer as an adult beetle for the second round of their lifecycle. Cucumber beetles are aptly named because cucumbers are their favorite food.
How to kill cucumber beetles?
Obviously using diatomaceous earth is my favorite way to kill cucumber beetles but there are other natural methods you can use to protect your cucumber plants too.
What are sticky bug traps for cucumbers?
These sticky bug traps are the same color as the cucumber flowers and the adult beetles will be attracted to them. Make sure to place the sticky traps out into your garden before the cucumbers start to flower for them to be the most effective.
How to get rid of cucumber beetles in garden?
Place yellow sticky traps around the plants to help catch the adult cucumber beetles when they first start showing up in your garden. Then dust the plants well with diatomaceous earth to kill the remainder.
What earth keeps cucumber beetles out?
Diatomaceous earth works so well to keep cucumber beetles out of our garden!
Why do cucumbers wilt?
As these beetles feed on your cucumber plants they can spread it through their mouths and feces. Once the bacteria has been introduced it spreads quickly and causes the leaves of your cucumbers to wilt.
What do Spined Soldier Bugs eat?
They are very helpful for getting rid of cucumber beetles but they also eat many other pests like cabbage worms and flea beetles.
What is the worst thing you can do to a cucumber?
One of the worst things that can happen to a cucumber is to have cucumber beetles take over your entire garden.
How to get rid of cucumbers?
One approach to getting rid of these pests is to use what is known as a bacterial wilt approach. This approach involves using a chemical known as oxalic acid to kill the cucumbers.
Why are beetles beneficial to plants?
They are actually very beneficial to plants because they feed on the plant juices when the plant is young and destroy the adult beetles when the plant becomes old. They do this by attaching themselves to the juices and eating the insects before they have a chance to mature.
Why do cucumbers eat plant juice?
They eat the plant juice to survive, but they also help to control the population of aphids and cabbage worms that can destroy the delicate root systems of cucumbers. This is important to know since those plants can’t produce enough fruits or vegetables to meet the needs of their users.
Can you use insecticide on cucumbers?
If you’re thinking that using what insecticide kills cucumber beetles is a good idea because you’re growing cucumbers, then you might want to think again. These insects are highly beneficial to plant life.
Can cucumber beetles be harmful?
The cucumber beetle doesn’t directly threaten food production, but it does threaten the existence of many plants around plants that are its host plants. And since these insects often get into vegetable crops by the thousands, using this type of insecticide can make you liable for a lawsuit against you.
Can cucumbers reproduce?
Instead, the chemical will eat the existing problem inside the plant, leaving the cucumbers alive and able to reproduce. You should be aware that this approach will also harm healthy plants nearby, so only use this approach if you have a lot of dead or dying cucumbers on your hands.
