How do I control Grasshoppers On Cannabis?

How do I control Grasshoppers On Cannabis?

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How do I Control Grasshoppers on Cannabis?​


Grasshoppers can be the bane of any cannabis grower's existence. These voracious insects are known for their capacity to wreak havoc on a garden with their hearty appetites. Control methods for these pests extend beyond merely addressing the problem when it arises; prevention is equally, if not more, crucial. Let's dive into the various techniques that can help you keep grasshoppers off your valuable cannabis plants, ensuring that your cultivation remains as fruitful as your harvest ambitions.

Understanding Grasshoppers and Their Impact on Cannabis​

Grasshoppers are attracted to cannabis because of its lush and resinous foliage. As herbivores, they can strip a plant of its leaves quickly, causing stress and potential yield loss. Identifying an infestation early is vital to preserving your crop's health. Look for chewed leaves and the presence of these insects basking in the sun on your plants.

Cultivation Practices to Prevent Grasshopper Infestations​

Effective cultivation practices are your first line of defense against grasshoppers. Start with tilling your soil before planting, as this can destroy grasshopper eggs laid in the ground. Planting companion plants that deter grasshoppers, like cilantro or calendula, can also be an excellent preventative measure. Keeping your grow area clean from weeds and debris reduces the habitat for grasshoppers to hide and reproduce.

Physical Barriers for Grasshopper Control​

Physical barriers, such as floating row covers or screen enclosures, can provide an immediate shield for your cannabis plants. These barriers should be fine-meshed to prevent grasshoppers from squeezing through and reaching the plants. Remember to secure them properly to eliminate any gaps.

Natural Predators and Biological Control​

One environmentally friendly strategy is to encourage natural predators of grasshoppers into your garden. Birds, beneficial insects like praying mantises and ladybugs, or even chickens, can be valuable allies in controlling the grasshopper population. Additionally, the use of biological control agents like the bacterium 'Nosema locustae' specifically targets grasshoppers and can be applied to foliage.

Organic Pesticides and Neem Oil​

If the situation calls for it, organic pesticides can offer a solution without the harmful side effects of chemical alternatives. Neem oil, in particular, is an effective treatment against grasshoppers. Applying it in the early morning or late evening allows the neem oil to coat the leaves without immediate sunlight, which can lead to burns on the leaves.

Insecticidal Soaps and Diatomaceous Earth​

Using insecticidal soaps can disrupt the cell membranes of grasshoppers, leading to their dehydration. Another option is diatomaceous earth, a non-toxic powder that causes physical damage to the exoskeleton of grasshoppers, leading to desiccation. Both methods are best applied in dry weather conditions to be effective.

Interplanting and Crop Diversity​

Interplanting cannabis with a diverse range of crops can confuse grasshoppers and make it harder for them to zone in on your cannabis. Not only does this method minimize grasshopper damage, but it also promotes a healthier ecosystem within your garden.

Grasshopper Traps and Baits​

Setting up grasshopper traps and baits around your grow area can reduce the local population. These can be as simple as yellow sticky traps or more complex bait stations with bran coated in a non-toxic insecticide that targets only grasshoppers.

Timing of Watering and Fertilization​

Grasshoppers are attracted to moist environments, especially in arid conditions. Adjusting the timing of watering your plants to cooler parts of the day can deter these pests. Also, using fertilizers that do not emit strong odors can prevent attracting grasshoppers looking for a lush feeding ground.

Monitoring and Regular Inspection​

Regular monitoring and inspection of your cannabis plants allow you to catch grasshopper problems before they become infestations. Keep a close eye on leaf damage and insect activity, acting swiftly when you detect the early signs of grasshoppers.


When it comes to protecting your cannabis from grasshoppers, being proactive is key. Employing a combination of preventative and active control measures can save you a significant amount of time and heartache. By understanding grasshopper behavior, disrupting their life-cycle with cultivation practices, enforcing barriers, and using natural predators alongside organic treatments, you can maintain a healthy and productive cannabis environment.

Remember, each garden is unique, and what works for one might not work for another. Stay vigilant, be adaptable, and your cannabis plants will thrive, free from the nibbling jaws of grasshoppers. Embrace the integrated approach outlined here, and you're far more likely to enjoy a bountiful, grasshopper-free harvest.
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