How Do You Control Armyworms?

An effective introduction paragraph acts as the “hook” that draws your reader in and motivates their interest in exploring your essay topic or question.

Treating an early armyworm infestation may limit damage and help the grass or plant recover faster. Nematodes provide effective yet nontoxic control options, so apply them in the morning or late afternoon when conditions permit.

Neem Oil

Neem oil is an ideal way to treat small armyworm infestations without compromising beneficial insects. The azadirachtin contained in neem oil suffocates moth larvae by blocking their breathing holes, as well as having antifungal, antibiotic, antipyorrhoeic, and insecticidal properties – making it an excellent natural alternative to chemical and granular pesticides for controlling specific types of insects.

Neem oil is safe to use on many crops including vegetables, fruit trees and ornamentals. It’s often used as a soil drench to control root nematodes while remaining organic-garden safe. Furthermore, its biodegradability means it breaks down quickly in soil, water or plant leaves without harming birds, earthworms or beneficial insects that reside therein.

Applying neem oil correctly will have an immediate impact, killing off an armyworm population within seven to twelve hours. This rapid response effectively destroys moths before they lay more eggs; and also serves to stop adult moths from laying any more eggs themselves.

An armyworm outbreak can be prevented by being vigilant and quickly identifying even minor signs before they escalate into full-scale infestation. Check your plants and lawn regularly for these voracious pests; look out for bare spots in the lawn or tussled up leaves on herb or vegetable plants, as well as cottony white clumps on underside of leaves where moth eggs have attached themselves.

If you suspect an armyworm infestation in your garden, spray a small area with neem oil according to its label’s instructions – these can vary depending on which product it comes from.

Make sure to conduct a trial run of the mixture of neem oil that you intend to use before applying it to multiple plant types in your garden. If it fails, experiment with different combinations or brands of neem oil; if that doesn’t work either, try another brand or combination and retest your plants. There are other horticultural oils containing azadirachtin such as spinosad that may also work against armyworms and caterpillars; always conduct a trial run before applying any insecticide; to ensure it won’t interfere with beneficial insects as well as being safe for both beneficial insects as well as being beneficial for the environment.

Physical Purge

Armyworms are a widespread pest that threatens lawns and vegetable gardens alike, wreaking havoc and leaving trails of destruction behind them. Most active from summer through fall, Armyworms wreak havoc by chewing through stems of plants to drain their nutrients away – leaving signs such as brown patches in lawns that novice gardeners might mistakenly believe are due to insufficient sunlight or water usage when in fact this browning could have been caused by Armyworms!

Armyworm caterpillars differ from cutworms in that they feed on whole plants rather than nibbling at individual buds like cutworms do, typically just devouring leaves at first and eventually damaging roots too – leaving behind weakening and stunted growth, leading to additional diseases settling on it.

Caterpillars vary from light green to tan in early stages and become darker green or brown later on, featuring dark green to yellow stripes on their bodies and having Y-shaped head capsules with hairless heads. If scouting your yard for these caterpillars, look in areas such as thatch layers and under leaf debris where they might hide during the day before becoming most active at night.

While a minor armyworm infestation should not cause alarm, it is crucial to quickly recognize and address it as soon as possible. A limited infestation can usually be controlled without resorting to chemical solutions; to minimize its population growth, regularly inspect your garden and lawn for signs of these critters; look out for brown larvae that do not move along with egg masses found in soil and under garden debris.

Preventative measures may include regularly picking up fallen plant material in your yard and keeping grass short to reduce hiding places for natural armyworm predators. Applying preventive insecticides like Bifen LP or Reclaim IT that provide long residual control against Fall Armyworm caterpillars on a quarterly basis to further keep caterpillars at bay.


An intensive scouting campaign can be effective at detecting armyworm infestations before they cause widespread damage. When searching, look out for signs such as feeding damage on leaves and the presence of frass (insect fecal pellets). Diseased or parasitized larvae could also be present. It’s especially important to keep an eye out for lush grasses which provide ideal egg-laying sites as well as grass borders around corn or small grain fields that contain many larvae and risk defoliation due to defoliation by armyworms.

If you find an infestation of armyworms, fungicide can help control their larvae; however, for maximum effectiveness against armyworms a low-impact pesticide containing Bacillus thuringiensis (Bt) should be used instead. Bt is a naturally occurring bacteria which is toxic only to caterpillars but has no negative impact on humans or pollinators – it comes in sprays, granules or dust products and should always be applied as directed; different strains of Bt exist that work against specific insects – just make sure that when applying any product that specifically targets armyworms!

Bt is just one form of insecticide available to combat armyworm infestation, but other products may also work to do the trick if used appropriately and under professional guidance. Consult a pest control technician if unsure which product to use; each situation warrants its own type and rate of product use.

Maintaining regular yard maintenance and preventive treatments will greatly decrease the chance of armyworm invasion in your yard. Should any signs of armyworm activity appear – brown patches of turf or chewed-up blades of grass for instance – take immediate action as these pests can quickly cause havoc! Don’t delay; when you see telltale signs, get professional help immediately so you can enjoy a lush, green lawn this summer without worry about invaders from other parts of the country! When frost arrives, rest easy knowing that your yard will be secure against future invasion by armyworms!

Contact Us

Armyworm moths “march” across lawns and turf in late summer and fall, feeding on grass as they go. Their feeding can consume entire areas in just days and leave behind brown, chewed-up patches of yard. While natural predators generally keep these pests under control, an infestation could still wreak considerable havoc if left uncontrolled.

Scouting for armyworm is key to early detection and effective control measures, so inspect field margins, low areas with rank growth and areas of feeding damage for signs of armyworm. Look out for larvae with light green or tan bodies that darken as they age as well as extra white or off-white stripes on their bodies.

If you detect an infestation, be sure to inspect the soil beneath your grass for any signs of egg masses. Female insects typically lay their eggs in sticky substances under the leaves of shrubs or other vegetation where they will remain safe from natural predators. If any egg masses appear, scrape them off using a knife before dropping them in a bucket filled with soapy water to eliminate them.

Maintaining a clean yard free from brush, debris and overgrown weeds can help combat armyworms by making it more difficult for them to lay eggs while also making them vulnerable to natural predators such as birds and ground beetles. Short grass and weeds as well as eliminating damp spots in your garden may make the environment less inviting to armyworms and their eggs.

There are various insecticides that can help combat heavy armyworm infestations. Products containing the active ingredients bifenthrin, cyfluthrin, cypermethrin, lambda-cyhalothrin, permethrin or spinosad have proven themselves effective at managing armyworm populations2. Before making your choice and following all application rates and instructions carefully when using any product – and don’t hesitate to get in touch if any questions arise or advice – we’re always happy to assist!