How To Get Rid Of Cucumber Beetles?

How To Get Rid Of Cucumber Beetles
Cucumber beetles and other unwanted insects can be captured with yellow sticky traps. You may collect beetles by knocking them to the ground and then placing a piece of cardboard under the plant to trap them. You might also try using a portable vacuum to get rid of the insects.

What is the best pesticide for cucumber beetles?

Because the majority of farmers have already planted all of their cucurbits, it is currently too late to test out a few other tactics. The use of row covers and metallic plastic mulches, both of which confuse cucumber beetles, are examples of the prophylactic treatments that may be used early in the growing season. – The mineral Kaolin clay

Kaolin clay, photo NH

At this time in the growing season, one approach that is commonly used is to sprinkle your plants with kaolin clay. Because it accumulates in the cucumber beetle’s antennae and forms a sticky coating, making it harder for them to navigate their environment, kaolin clay is one of the most effective treatments against this pest.

  1. Due to the fact that kaolin clay is ineffective against cucumber beetles, it should not be utilized as a last resort therapy.
  2. Instead, the purpose of this is to discourage them from eating directly on your crop.
  3. Even if you currently have high populations in your crops, it may still be beneficial for you to utilize kaolin clay; however, you should think about combining it with an application of pesticide.

Elimination by manual labor Gatherings of cucumber beetles are not uncommon. Although the criteria for spraying (see below) are between one and five bugs per plot, we sometimes find more than one hundred beetles on a single plant while there are fewer beetles in other parts of the field.

  1. Consider torching the beetles in a concentrated region if you are noticing dense concentrations of them and if your production space is large enough to allow you to lose a few plants in the process.
  2. In circumstances such as this one, the usage of an insect vacuum is another option that could prove useful.

Insect vacuums are notoriously difficult to find and can be prohibitively costly. However, a number of growers have created low-cost vacuums by modifying leaf blowers. In addition to this, you should remove the plants immediately if you notice any indications of bacterial wilt on any of the plants.

  1. They are not going to live anyhow, and they are contributing to the bacterial wilt that is occurring in your field.
  2. Cucumber beetles do not all inherently have bacterial wilt; rather, they need to feed on a plant that is already diseased, and then go on to another plant that is not afflicted in order to transmit the disease.

Pesticides that are permitted for use in organic farming systems It is possible to successfully control cucumber beetle using a combination of pyrethrin insecticides and neem, but you will most likely need to use this mixture more than once. Pyrethrins are contact insecticides that will kill most insects, including those that are useful, thus it is important to apply them either very early in the morning or very late in the day.

Neem has several mechanisms of action, but the most important one is that it inhibits eating. On the market now you may buy a product called Azera that is approved for use by OMRI and contains both of these compounds. The Midwest Vegetable Production Guide for Commercial Growers recommends only one product that has received OMRI approval, and that is Azera.

Products containing pyrethrin and neem can be purchased and utilized independently as well.

Does soapy water work on cucumber beetles?

15. Insecticidal Soap – Purchase an insecticidal soap that is already prepared for use, such as Bonide, which is authorized for use in organic agriculture. Use it to spray the creatures, being sure to follow the recommendations on the packaging. You may also create your own combination by blending one gallon of water with three teaspoons of liquid soap, three tablespoons of vegetable oil, and three tablespoons of each separately.

How do you trap cucumber beetles?

Have you ever given thought to how striped cucumber bugs are able to locate your cucurbits year after year? In order to locate their prey, striped cucumber beetles use both their eyes and their sense of smell. They are particularly drawn to the color yellow, as well as the fragrances given off by male striped cucumber beetles and the aromas given off by cucurbit blooms.

During the summer of 2018, we conducted research on the feasibility of using live beetles and lures that mimic cucurbit blooms for mass trapping using yellow gallon jugs. On one farm, a total of 16 traps were used to catch 2,363 striped cucumber beetles between the months of late May and early September (Figure 1).

The months of May and August saw the collection of the overwhelming bulk of these insects. The jugs holding live beetles and floral lures were the most appealing to the insects in August, but in May the control jugs were the ones that attracted the beetles the most.

We recommend using solely yellow jugs without any lures or live beetles if you are setting traps early in the season, either before or as striped cucumber beetles begin to emerge from their overwintering locations. Yellow jugs baited with floral attractants and, if at all feasible, live beetles should be used in any trapping done at the end of the season with the goal of reducing the number of beetles that survive the winter in the area.

Things that are required: Gallon jugs traps Gallon jugs Spray paint in a bright yellow high gloss finish Drill using a 7/32″ bit Dishwasher liquid Water Stake Wire ties or zip ties floral flowers, a length of thread, and a little plastic bag (optional) containers containing live beetles (optional) Container Hot glue Knife Rope High tunnel mesh Cucumber beetles with striped backs A diet for beetles (cucurbit leaf, flower or fruit) Directions: Drill 10 holes in two rows along each side of the jug using the drill.

We learned from our experiences over the previous summer that putting the holes around halfway up from the bottom of the jug allows the jugs to store more water while also reducing the amount of water that spills out of them. Spray paint the jug in a high gloss yellow all over so that it is completely covered.

See also:  Why Does Tomato Sauce Stain Plastic?

Put the posts about 30 feet apart from one another, and then use zip ties to suspend the jugs from the stakes several feet above the ground. Put some soapy water in each of the jugs. Because the soap reduces the surface tension, the insects will have an easier time drowning (Figure 2).

Use the corn rootworm lure (TRE 8276) from TRÉCÉ, Inc. (, which is designed specifically for use with floral lures. These lures may be purchased for a total cost of $2.50 apiece, and they remain effective for one month. A length of string has to be threaded into the interior of the jug so that the lures can be hung there.

If you are having trouble passing the lure through the mouth of the jug, you can divide the lure in half and place each piece in its own little bag made of tiny plastic. In order to create traps for live beetles, you must first remove two of the sides of a plastic container and then glue mesh in its place using hot glue (Figure 3).

Drill two holes close to the top to connect a rope for hanging, and then use hot glue to cover any gaps you may have created. The striped cucumber beetles should be obtained from a field and placed in each of the 10 traps. Although we used sugar water to keep the beetle bait alive, you could also use a blossom, fruit, or leaf from a cucurbit plant instead.

Dr. Jaime Piero of the University of Missouri was the original creator of the traps that we used as a model. Visit the following website to learn more about the researchers’ traps as well as the research they conducted:

  1. Figure 1: Cucumber bugs with a striped pattern that were captured on one farm during the course of one season Figure 2.
  2. Both the color yellow and the lures that are included within the jugs are known to entice beetles.
  3. Once they are inside, they have trouble finding their way out, and most of them end up drowning in the soapy water once they have given up trying to escape.

Figure 3. The trap consists of a gallon jug and a container containing live striped cucumber beetles. In order to create ventilation, two of the sides of the container were removed and then rebuilt with high tunnel mesh.

What keeps cucumber beetles away?

Employ a physical barrier – From the beginning until the middle of June, you may try to protect your cucurbits from the striped cucumber beetle by constructing a floating row cover or another type of barrier. This will help to keep the bugs away from your plants. When the first flowers appear on the cucurbits, you should take down the barrier.

What do cucumber beetles hate?

How can I protect my cucumbers from cucumber beetles? Defeating cucumber beetles requires the construction of barriers, the elimination of hiding spots, and the cultivation of plants that are resistant to the pests. Be sure to protect your plants from beetle infestation by using floating row coverings.

Remove the coverings from the plants as they begin to flower so that bees and other pollinating insects may access the blossoms. Educate yourself on the topic of floating row coverings. Choose the non-bitter “burpless” types of cucumbers, such as the Burpless hybrid cucumber and the Burpless Bush hybrid cucumber, since they are less likely to attract cucumber bugs than older varieties.

Bring in the bumblebees. The presence of bumblebees, which may be attracted to cucumbers by planting flowers such as borage, scarlet runner beans, and other flowers nearby, will help repel cucumber bugs. Grow repulsive plants. Flowers such as nasturtiums and marigolds, herbs such as catnip, and vegetables such as radishes and maize are also effective deterrents against cucumber bugs.

How long are cucumber beetles active?

How To Get Rid Of Cucumber Beetles How to Recognize Cucumber Bugs Cucumber beetles are especially bothersome pests that flourish on plants in the cucurbit family including squash, zucchini, cucumbers, pumpkins, and watermelons. Cucumber beetles can also be found on watermelons and pumpkins.

There are various different kinds of cucumber beetles, but the spotted and striped cucumber beetles are by far the most prevalent varieties to cause damage. They have a yellow body with black dots or stripes, which makes them very easy to recognize. Cucumber beetle with a spotted pattern Cucumber beetle with striped back Beetles that feed on cucumbers live for around eight weeks and are most active in the spring, when the plants’ stems and leaves are still young and vulnerable.

Cucumber beetles have a lifespan of about eight weeks. Cucumber bugs have been eating squash. Among addition to this, they adore congregating in the orange-yellow blooms of cucurbit plants. Take a look at the number of bugs that are in this one bloom! Squash flowers are a significant source of attraction for cucumber bugs. How To Get Rid Of Cucumber Beetles How To Get Rid Of Cucumber Beetles How To Get Rid Of Cucumber Beetles

What attracts cucumber beetles the most?

Plant resistant/unattractive cucurbit variants – Cucumber beetles are drawn to host plants by a chemical known as cucurbitacin. This molecule is responsible for the bitter taste of cucurbits and most likely serves as a defensive mechanism against herbivores with less specialized diets (Deheer and Tallamy, 1991).

  1. Beetles take in cucurbitacin and store it in their bodies so they may employ it as a defense mechanism against predators and disease-causing agents (Gould and Massey, 1984; Tallamy et al., 1998).
  2. Therefore, cucumber beetles could be less interested in cucurbit variations or species that have lower quantities of the cucurbitacin chemical.

Naturally, the types of cucurbits that are planted are determined in great part by market pressures, which means that in many cases, variety selection won’t be an option. The publication Cucumber Bugs: Organic and Biorational Integrated Pest Management includes a table that ranks the attraction of various cucurbits to cucumber beetles.

Will neem oil get rid of cucumber beetles?

Neem Oil – Neem oil is a powerful organic insecticide that may be utilized at an early stage in the process of cucumber beetle management. In order for neem oil to be effective, it must interfere with the beetle’s development. This prevents the beetles from being able to eat and reproduce, which ultimately leads to their demise.

See also:  Why Aren'T My Tomato Plants Growing?

What is a trap crop for cucumber beetles?

We strongly suggest adopting Baby Blue Hubbard Squash as a trap crop due to the fact that it is extremely appealing to cucumber beetles, produces unusually robust seedlings, and is less prone to bacterial wilt than many other types of squash.

Do cucumber beetles eat tomatoes?

There are two different insect genera that contain cucumber beetles; they are called Diabrotica and Acalymma. Cucumber beetles feed on cucumbers. Both belong to the family of insects known as Chrysomelidae, which is comprised of a wide variety of different beetle species.

Although there are many distinct species within each genus, we are going to concentrate on the more common ones that attack food. Be mindful of the fact that almost every kind of cucumber beetle is capable of passing on illnesses to the plants they feed on. The bacterial wilt disease and the cucumber mosaic virus are the ones that spread the most frequently.

Therefore, it is quite necessary to get rid of these things before they consume your plants or poison them! Diabrotica virgifera, sometimes referred to as the “Western Corn Rootworm” or the “Mexican Corn Rootworm.” There are two subspecies of this insect: Diabrotica virgifera zeae, also known as the Eastern corn rootworm, and Diabrotica virgifera virgifera virgifera, also known as the Western corn rootworm (the Mexican corn rootworm).

Since the two are so closely connected to one another, the only way to tell them apart is by their geographical location. Diabrotica virgifera, more often known as the western corn rootworm, is one of the insects that does the most damage to corn crops in the United States when it is in the larval stage.

From the southern boundaries of the “corn belt” all the way to the eastern coast, it stretches throughout the whole country. Additionally, it has made its way to and throughout Europe, where it has caused severe problems in a number of different nations.

  1. As an adult, Diabrotica vergifera is still highly harmful since it continues to transmit its species; as a result, it need to be eradicated as fast as possible after it has been found.
  2. Be on the lookout for this black and yellow insect, and respond aggressively when you see it.
  3. The Diabrotica undecimpunctata, also known as the “Spotted Cucumber Beetle,” the “Southern Corn Rootworm,” the “Western Cucumber Beetle,” and the “Western Spotted Cucumber Beetle,” is an insect that feeds on cucumbers.

This species can also be broken down into a number of different subspecies. Those are: Diabrotica undecimpunctata howardi (the spotted cucumber beetle or southern corn rootworm) Diabrotica undecimpunctata undecimpunctata (the western spotted cucumber beetle) Diabrotica undecimpunctata tenella (the western cucumber beetle) These are also significant agricultural pests that need to be eradicated as soon as possible.

In comparison to the western corn rootworm, they have a greater range of crop-related effects. These can be troublesome on a variety of different beans, cucurbits, and many more plants. The coloring is something that all three of these subspecies have in common with one another. This yellow beetle with black dots could have a little different number of spots or a slightly different arrangement of those spots, but other than that, their appearance is very similar.

Diabrotica speciosa, ‘Cucurbit Beetle’, ‘Vaquita de San Antonio’ Known as the vaquita de San Antonio in South American countries. The cucurbit beetle consumes not just cucurbits but also beans, grapes, and potatoes as part of its diet. Its primary habitat is South America and the surrounding areas, where it poses a significant threat to agricultural production.

  • Despite the fact that it is more attractive than some of the other species of cucumber beetle, it may cause a lot of damage.
  • The Diabrotica balteata, often known as the “Banded Cucumber Beetle” or the “Belted Cucumber Beetle.” The banded cucumber beetle has made its way all the way down to Colombia and Venezuela from its original home in the United States.

It carries a staggering variety of foodstuffs in its inventory. Cucumbers, melons, squash, and gourds are all examples of foods that belong to the cucurbit family. In addition to that, it consumes some cruciferous vegetables like cabbage, certain nightshades like tomato and potato, as well as other vegetables.

  • The climate in the northern United States is just too cold for this species of cucumber beetle to live in, which is why it is not as prevalent in that region.
  • On the other hand, since it first appeared in the late 1920s, it has become a significant problem in the southern part of the country.
  • The “Northern Corn Rootworm,” also known as Diabrotica barberi.

The Northern corn rootworm is equally as hazardous in colder areas as its southern counterpart, the Southern corn rootworm, is in warmer settings. It is mostly found in the United States and Canada. This little insect, which is closely related to one that lives in the south, has a diet that is just as varied as that of its southern sibling and may cause just as much damage in a garden.

The “Striped Cucumber Beetle,” also known as Acalymma vittatum The striped cucumber beetle is a species that belongs to the other genus that makes up the population of cucumber beetles. Both the larval and adult stages of this insect pose a significant threat to agricultural production. The majority of its diet consists of cucurbitaceous plants.

The adult form favors the leaves of more mature plants. The larvae feed on the underlying root structure of the plants while they are still underground. The majority of specimens of this species of cucumber beetle are discovered in North America, more especially in the middle and eastern parts of the United States.

Western Striped Cucumber Beetle,” also known as Acalymma trivittatum This near relative of the striped cucumber beetle is a variety that tends to stay west of the rest of its family. It can only be found in the western United States. In terms of the crops that are used for food, there are many parallels.

This might have been the result of an evolutionary process that favors the warmer weather of the western regions.

See also:  How To Protect Tomato Plants From Squirrels?

Do birds eat cucumber beetles?

There is a wide variety of benefits associated with luring birds into your gardens and yards. They are pleasant to see, amusing, and have a wonderful singing voice. The best part is that most birds consume a wide variety of insects, including the most troublesome ones for gardens.

Is Sevin good for cucumber beetles?

The larval and adult stages of the cucumber beetle are both considered to be pests because of the harm they do to vegetable crops. They prey on plants that are members of the cucurbit family, such as cucumbers, melons, and squash; however, certain species also attack eggplants, beans, and other types of crops.

  1. These pests are also responsible for the spread of bacterial and viral plant diseases, including the cucumber mosaic virus.
  2. Multiple generations can be produced in a single season, which results in an increase in both the population and the amount of damage caused by the pests by the end of the season.

The Identification of Cucumber Beetles Common cucumber beetles can either have spots or stripes on their bodies, depending on the species. Both kinds reach a maximum length of only a quarter of an inch. The wing covers of spotted types are greenish-yellow with 12 black dots, while the heads of spotted types are black.

  1. The heads of striped varieties are black, and there are three black stripes that run down the yellow-orange cover of their wings.
  2. Both kinds have long, thin antennae.
  3. The larvae of the cucumber beetle are wormlike and creamy white in color, with heads and tips that are somewhat darker.
  4. They reach a maximum length of around 3/8 inch and have three pairs of rather short legs located near their heads.

Indications or signs of damage caused by cucumber beetles Eggs of an orange-yellow color are placed near the bases of plants by the cucumber beetle, which will later hatch into larvae. After that, they spend the next few weeks feeding on the plant roots.

  • When plants have significant infestations, they are more likely to topple over when there is a windstorm.
  • Adult beetles eat on fruits, fragile young shoots, flowers, and leaves, which causes harm to any portions of the plant that are above the soil level.
  • Their eye-catching coloring makes it simple to see them as they forage for food.

Controlling Cucumber Beetles and Their Damage It is important to treat plants at the first sign of cucumber beetles so that crops are not lost to the insect before the damage becomes serious. It is best not to treat open flowers of cucurbits since successful crop production depends on the activity of insect pollinators.

The GardenTech brand provides a number of products, all of which are designed to eliminate cucumber beetles and safeguard your crop: The use of Sevin Insect Killer Concentrate is a straightforward and cost-effective strategy for providing comprehensive coverage of vining cucurbits and other cucumber beetle targets on a big scale.

Spray the plant surfaces well with the solution using a pump-style sprayer to kill the mentioned pests on contact and provide protection against cucumber beetles for up to three months. The ready-to-use version of Sevin Insect Killer may be attached to a standard garden hose and will mix and measure as it is sprayed.

Cover plant surfaces completely to eliminate current cucumber bugs by touch and to prevent future generations of these beetles for up to three months. Covering plant surfaces also protects against other pests. As soon as cucumber beetles come into contact with Sevin Insect Killer Dust Ready to Use, the beetles begin to die, which helps protect vegetables from being damaged by insects.

Make use of the practical shaker container to apply a coating that is thin, even, and covers both the top and bottom surfaces of the stems and leaves. A helpful hint for controlling cucumber bugs is that the adult insects spend the winter hiding in weeds.

To cut down on springtime numbers, make sure that your gardens and the spaces around them are clear of weeds and tall grass. Always be sure to carefully read product labels and follow the directions, which should include recommendations for the plants and pests that are specified, as well as application frequency and pre-harvest intervals (PHI) for food crops.

Gulfstream Home and Garden, Inc. has legally secured the right to use the GardenTech trademark. Tessenderlo Kerley, Inc. is the owner of the trademark for the drug Sevin. PHOTO CREDIT: “Striped Cucumber Beetle” by Katja Schulz is used here under a Creative Commons Attribution 2.0 license.

Will neem oil get rid of cucumber beetles?

Neem Oil – Neem oil is a powerful organic insecticide that may be utilized at an early stage in the process of cucumber beetle management. In order for neem oil to be effective, it must interfere with the beetle’s development. This prevents the beetles from being able to eat and reproduce, which ultimately leads to their demise.

Is malathion good for cucumber beetles?

Foliar Liquid Sprays – Carbaryl, malathion, and a formulation that consists of rotenone and pyrethrin are examples of insecticides that come in liquid form. There have been reports that malathion is only somewhat effective. To treat a garden that is 1,000 square feet to 3,500 square feet in size, you should apply 0.5 to 1.25 fluid ounces of malathion emulsion per gallon of water.

  1. The emulsion should be 50 percent.
  2. After you have observed cucumber beetles, apply the spray to the plants, being sure to cover all of the shoots and leaves.
  3. If you still observe insects a few days later, you should repeat the treatment.
  4. Because of the plant’s sensitivity to the combination, malathion and carbaryl dusts or liquid sprays cannot be used together in any application.

Carbaryl in liquid form, with a concentration of 23.7%, is an alternative to the powdered version. In order to prepare the spray solution, mix together one gallon of water and four tablespoons of the product. Spray the plant so that all of its surfaces are fully moist, and do this either early in the morning or late in the evening, when the blooms are closed, to avoid the plant from being poisonous to bees.