Microgreens, a versatile and nutritious addition to a healthy diet, are not immune to pest invasions. In their fragile state, these miniature plants can become an easy target for tiny insects and larger predators. Embracing natural methods for pest control is not only beneficial for the microgreens but also for the health of humans consuming them. These methods are budget-friendly, healthy, and eco-friendly compared to the toxic and harmful chemicals commercially available.
Crop Rotation and Companion Planting
A simple yet effective method to control pests naturally is crop rotation. Changing the placement of different crops overtime confuses the pests and disrupts their lifecycle. This technique can reduce the infestation of soil-borne pests and diseases. Additionally, incorporating companion planting can deter specific pests and attract beneficial insects. For example, planting marigold, garlic, or onions near your microgreens can repel pests with their strong scent. Most herbs, like basil and rosemary, can also be used due to their insect-repelling properties.
Predatory Insects and Animals
Attracting beneficial predatory insects or animals to your microgreens can provide natural pest control. For instance, Ladybugs, spiders, and praying mantises hunt smaller pests detrimental to your plants. Predatory insects can be attracted to your microgreens by planting companion plants or providing them with shelter and food.
Larger predators such as birds, toads, and garter snakes can also be enticed into your garden as they are known to eat insects and slugs that can harm microgreens. Providing habitats, such as birdhouses or toad huts, can facilitate this process.
Biological Control
Biological control functions by introducing a pest’s natural enemies to halt their population growth. Nematodes, microscopic worms, can be used against cutworms, and Bacillus thuringiensis, a bacterium, can control caterpillar pests. The trick is to understand the pest’s lifecycle and introduce its predators or diseases at the right time.
Diatomaceous Earth
Diatomaceous earth, a naturally occurring powdered rock, can be an effective control for pests like aphids, mites, and other crawling insects. Its tiny fossilized diatoms cut through the insect’s exoskeleton, causing dehydration and death. Sprinkling a small quantity around the base of the microgreens can prevent pest damage. However, it should be reapplied after rain or watering as it loses efficacy when wet.
Delivering a daily spray of water
In the case of certain pests, it’s recommended to use a strong water spray. It works wonders at dislodging pests such as aphids or mites from the leaves of the plants. Make sure to spray the underneath of the leaves as well where pests are more commonly found. Although simple, this method can be quite effective when done consistently.
Organic Insecticidal Soap
Organic insecticidal soap can be used as a safe alternative to commercially available pesticides. The soap solution breaks down the insect’s protective coating, leading to dehydration and eventually death. Making insecticidal soap at home is cost-effective and straightforward. All you need is water, liquid soap (ensure it’s pure and free from any additives), and a few drops of essential oil for better efficiency.
Particular Plants’ Infusions
Infusions of certain plants such as chilies, garlic, or strong-smelling herbs have been known to work as natural repellents. To make an infusion, chop up the desired plant, soak it in water for 24 hours, strain the mixture, and spray it onto the plants. The strong-smell from these infusions is unattractive to pests and ward them off.
Row Covers
Row covers are physical barriers that shield the plants from pests. They can be made from materials like plastic, muslin, or net and must be installed over the planting area. Row covers are effective against flying insects, slugs, snails, and birds. However, they must be lifted periodically to allow moisture to escape and prevent fungal diseases.
Traps
Making traps can also be an effective deterrent for pests. Slugs and snails that pose a considerable threat to microgreens can be trapped using beer. Create a beer-filled pit near your plants; the yeast smell will attract these pests. They climb in, get stuck, and end up drowning. Yellow sticky traps can be used against flying insects such as fungus gnats and whiteflies.
Implementing these natural methods for pest control in microgreens can significantly reduce the dependence on chemical pesticides. It not only supports the health of your plants but also contributes to the environment by reducing toxic pollution. Investing time in these methods will ultimately lead to a bountiful and healthy harvest of microgreens.
