Are There Natural Remedies for Deterring Plains Lubber Grasshoppers?

The plains lubber grasshopper (Brachystola magna) is a large and striking insect commonly found in the central United States. While they are not typically considered major agricultural pests, their large size and voracious appetites can cause localized damage to crops, gardens, and ornamental plants. Many gardeners and farmers seek natural ways to deter these grasshoppers without resorting to harsh chemicals that may harm beneficial insects or the environment. This article explores various natural remedies and strategies for managing plains lubber grasshopper populations effectively.

Understanding Plains Lubber Grasshoppers

Before diving into control methods, it’s important to understand the biology and behavior of plains lubber grasshoppers:

• Size and Appearance: These grasshoppers are among the largest in North America, often reaching lengths of 2 to 3 inches. They have bright, colorful bodies with distinctive black and yellow stripes or bands.

• Habitat: Plains lubbers are primarily ground-dwelling insects found in grasslands, fields, pastures, and sometimes gardens.

• Feeding Habits: They feed on a variety of plants including grasses, weeds, and vegetables. Their chewing can cause defoliation and damage to crops.

• Movement: Unlike other grasshoppers, plains lubbers are slow movers and cannot fly well, which makes localized control more feasible.

• Defense Mechanisms: They produce a foul-smelling secretion when threatened, deterring many predators.

Understanding these traits helps tailor natural control methods that exploit their vulnerabilities.

Why Use Natural Remedies?

Chemical insecticides can offer quick knockdown but often come with drawbacks such as:

• Harm to pollinators like bees and butterflies.
• Residue buildup in soil and water.
• Development of pesticide resistance.
• Negative impacts on beneficial predatory insects.

Natural remedies tend to be more environmentally friendly, safer for humans and pets, and promote ecological balance by preserving natural predators of grasshoppers.

Natural Remedies to Deter Plains Lubber Grasshoppers

1. Encouraging Natural Predators

One of the most effective natural control strategies is encouraging predators that feed on grasshoppers or their eggs. Some natural enemies include:

• Birds: Species like robins, starlings, sparrows, and blackbirds consume grasshoppers.
• Small Mammals: Shrews and rodents may feed on nymphs or eggs.
• Insects: Predatory beetles (carabids), assassin bugs, spiders, and parasitic wasps attack grasshopper eggs or young nymphs.

How to encourage them?

• Provide birdhouses or perches to attract insect-eating birds.
• Maintain hedgerows or cover crops as habitat for beneficial insects.
• Avoid broad-spectrum insecticides that kill predators indiscriminately.

2. Crop Diversification and Companion Planting

Plains lubbers tend to prefer certain plants over others. By diversifying crops or using companion plants that repel them, you can reduce damage:

• Repellent plants such as marigolds, garlic, chives, and chrysanthemums have strong scents that deter grasshoppers.
• Planting aromatic herbs like basil or mint around garden edges may also help mask attractive host plants.
• Intercropping with less palatable species can reduce overall grasshopper feeding impact.

3. Physical Barriers

Preventing access to vulnerable plants is a simple yet effective method:

• Use floating row covers made from lightweight fabric to shield young seedlings during peak hatching times.
• Fine mesh netting can be draped over vegetable beds or garden areas.

These barriers physically block grasshoppers from feeding without chemicals.

4. Handpicking

Due to their large size and slow movement, plains lubber grasshoppers can often be controlled by manual removal in small garden settings:

• Wear gloves (as they may emit an odor when disturbed).
• Collect them early in the morning when they are less active.
• Dispose of them far from your garden area or place in a bucket of soapy water.

Though labor-intensive, handpicking is chemical-free and effective for localized infestations.

5. Neem Oil Applications

Neem oil is a plant-derived insecticide known for its ability to disrupt feeding and reproduction in many pest insects:

• Spray neem oil diluted according to label instructions on affected plants.
• It acts as an antifeedant and growth regulator against grasshoppers.

Neem oil is biodegradable, relatively safe for beneficial insects (if applied carefully), and widely used in organic gardening.

6. Nematodes for Egg Control

Beneficial nematodes (Steinernema spp.) are microscopic roundworms that parasitize insect larvae including grasshopper eggs:

• Apply nematode formulations to soil where grasshopper eggs are laid.
• The nematodes invade eggs causing mortality before hatch.

This method targets future generations rather than adults but can significantly reduce population build-up over time.

7. Diatomaceous Earth

Diatomaceous earth (DE) is a naturally occurring silica-based powder that abrades the exoskeleton of insects causing dehydration:

• Dust DE lightly around garden beds or directly on plants where grasshoppers feed.

While DE must be reapplied after rain or watering, it provides a chemical-free physical deterrent. Use food-grade DE for safety.

8. Maintaining Healthy Vegetation Balance

Overgrazed pastures or monoculture areas can encourage larger populations due to lack of plant diversity:

• Rotate crops regularly.
• Include cover crops like clover or alfalfa which may reduce pest pressure by enhancing soil health.

Healthy ecosystems with varied plant species discourage high concentrations of any one pest species including plains lubbers.

Additional Tips for Managing Plains Lubber Grasshoppers Naturally

• Timing Is Critical: Target control efforts when nymphs first appear because young grasshoppers are more vulnerable.
• Monitor Regularly: Inspect plants frequently during summer months to catch early infestations.
• Maintain Garden Cleanliness: Remove weeds and plant debris where adults may lay eggs or take refuge during winter.

When Natural Remedies May Not Be Enough

Despite best efforts, heavy infestations can sometimes overwhelm natural methods especially in large agricultural settings. In such cases:

• Use targeted chemical controls as last resorts following Integrated Pest Management (IPM) principles.
• Prefer selective insecticides that minimize environmental impact.

However, combining multiple natural strategies often dramatically reduces reliance on synthetic pesticides.

Conclusion

Plains lubber grasshoppers can be an unsightly nuisance causing damage in gardens and fields, but numerous natural remedies exist to deter these insects while protecting ecosystems. Encouraging natural predators, using companion planting with repellent species, applying physical barriers like row covers, handpicking adults, employing neem oil sprays, utilizing beneficial nematodes for egg control, dusting food-grade diatomaceous earth around plants, and maintaining healthy vegetation diversity all contribute toward managing these large grasshoppers sustainably.

By understanding their behavior and integrating several non-toxic tactics tailored to your specific environment—whether a backyard garden or pastureland—you can keep plains lubber populations at manageable levels without compromising safety or biodiversity. Embracing these eco-friendly approaches promotes healthy soils, vigorous plants, thriving wildlife habitats, ultimately ensuring a balanced relationship between humans and nature’s many fascinating insects.

References available upon request.