THE GARDEN INDEXBEDS, SEEDS AND THE JOBS BETWEEN THEM
No. 08Pots & Small Space 4 min read

Keeping Chewing Insects Below the Damage Threshold Without a Spray Programme: Hand Removal, Barrier Fabric, Habitat for Predators, and the Timing…

SheetNo. 08
SectionPots & Small Space
FiledMay 05, 2026
Length4 min read
A close-up and overhead shot of a small ladybug crawling on a cluster of white colored yarrow flowers, showcasing…
A close-up and overhead shot of a small ladybug crawling on a cluster of white colored yarrow flowers, showcasing natural pest control

Pest problems are usually population problems. Acting early and lightly tends to beat reacting late and hard. When we say “natural pest control”, we mean non-chemical.Even organic sprays are chemicals, and you can grow a garden without them. Leave these as a last resort, anduse other strategies first. You may find you’re using sprays and dusts a lot less when you do. The culture of your garden is your first line of defense. How you weed, what you plant, and your timings all influence how well your garden grows. When pests arrive, as they inevitably will, mechanical controls become your second defense. Barriers, strong water streams, and sanitization all help you keep pests at bay. This is our focus here in this piece. Wefocus on the mechanical and cultural controls,which directly influence biological controls, or the beneficial insects that eliminate pests for you. By focusing on these areas, you avoid chemicals that can make matters worse. Pollinator’s Paradise Seed Bundle Pollinator’s Paradise Seed Bundle

Pollinator’s Paradise Seed Bundle
Pollinator’s Paradise Seed Bundle

Small Space, Big Harvests Starter Mix

Small Space, Big Harvests Starter Mix
Small Space, Big Harvests Starter Mix

Small Space, Big Harvests Starter Mix

Just Tell Me What to Plant Starter Pack

Just Tell Me What to Plant Starter Pack
Just Tell Me What to Plant Starter Pack

Just Tell Me What to Plant Starter Pack

Grow Flowers

Native flowering plants support the predatory insects that feed on garden pests.
Native flowering plants support the predatory insects that feed on garden pests.

We mentioned biological controls above. To bring in predatory insects that provide natural pest control, you need flowering plants. The best ones are native to your region. These bring in plenty of local hoverflies, parasitic wasps, beetles, spiders, and plenty of solitary bee species.

You don’t have to plant solely natives, but you’ll get the greatest benefit from them. If you need a few ideas of what to plant, here are someoptions that will attract beneficial predatorsto your garden. Note that there are even more beneficials attracted to these plants than those that are listed.

Use Barriers

Lightweight covers block early-season pests while letting in light and rain.
Lightweight covers block early-season pests while letting in light and rain.

Early in the spring season, prolific pests like flea beetles, cutworms, and armyworms can wreak havoc on your garden. In these early moments, when plants are just getting established, these common pests are just waking up, and they’re hungry. Instead of spraying them to death, block them from access to your plants with barriers.

Asmall cage with a UV-penetrating coveris a great form of natural pest control. Your spring plants still receive the sunlight and rainwater they need to thrive, butexternal pest access is blocked.For larger areas,seek out row covers, which come in long sheets or in small modular covers you can place over raised beds.

Employ Trap Crops

There’s a lot of confusion about trap crops, but when they’re employed appropriately,they work amazinglyas a natural pest control method. In vegetable gardens, it’s almost essential to have a few trap crops to keep aphids, mites, and caterpillars at bay. I know if I didn’t use them, pests would proliferate more and more year after year.

There are stipulations to trap cropping effectively. But basically, youplant your trap a few weeks before your more sensitive crop.Then plant the one you want to protect three to eight feet away. As the pest numbers increase on the trap, remove it and throw it away, keeping it out of the compost pile.

This method is usually used in veggie gardens, but it can be employed in ornamental gardens too if you want to try it out. Use trap crops in combination with other techniques on this list for the best results.

Mulch Your Garden

You’ve likely heard about using mulch to keep weeds out of the garden and to improve moisture retention. But did you know that it is alsoa great form of natural pest control?Organic mulchesare effective inlimiting thrips and leafminers. They keep soft-bodied pests, like snails and slugs, from reaching the base of plants.

They’re also excellent for keeping diseases out of the garden. By reducing water splashing up from the soil, fungal and bacterial pathogens don’t reach foliar areas where they can take hold and cause problems.

Locate Conveniently

One of the best changes I’ve made in my garden recently iskeeping all my cultivated plants in a convenient locale.I let my natives do their thing in the further reaches of the yard, and keep my tomatoes, herbs, and other veggies close to my kitchen, on my back porch.

If you can, always plant your more sensitive plants where you can see them or at least get to them easily. Check on these every day. The best form of natural pest control is consistent monitoring.

Weed Your Garden

This technique is kind of a reverse form of using barriers to keep pests away. Multiple perennial and annual weeds actuallyhost insect pests and diseases.So keeping these out of your garden and away from borders makes it harder for those pests to make their way to your plants.

This starts in early spring when the first weeds emerge. Try to catch them at the “white thread” phase, when they’re easiest to pull. If you missed that window, try to pull them at a more mature stage, or use a hand trowel to remove them, root and all. Even chopping them down will prevent pests from reaching the garden bed.

Companion Plant

We touched on this before with trap cropping and planting flowers, but there are numerous ways to companion plant and provide varying forms of natural pest control.Companion plantsattract beneficial insects, repel pests, complement nutrient exchangebetween plants, and enhance biodiversity. All of these are excellent forms of natural pest control.

There are almost limitless combinations you can plant in your garden. It’s worth taking a lookat a listto see if you can maximize the production in your garden, and keep the pests away.

Filed underPots & Small Space#Crop rotation