Fight Pests Without Using Bug Spray

, written by Ann Marie Hendry gb flag

Ladybird

Dealing with pests in the garden can feel like an ongoing battle. Naturally you don’t want pests to destroy the crops that you’ve worked so hard to grow, but reaching for the bug spray is not a good option, and it’s ultimately self-defeating.

A bug spray massacres pests. That may sound like a solution, but the problem is it also wipes out the beneficial insects – your own private army – at the same time. With no predators and no existing pests, this creates a gap in your garden’s ecosystem for other pests to surge in unchecked, meaning you need to apply ever more pesticides just to keep on top of the problem.

When it comes to dealing with pests, a two-pronged organic approach is the most effective in the long term: protection and making the garden less appealing to pests.

Fine mesh netting protective tunnel

1. Protect Your Crops

As most growers of cabbages, broccoli or other brassicas will know, defence is the best form of attack. No food gardener’s armoury is complete without a length of fine mesh netting. Not only can it be used to create protective tunnels for the likes of brassicas (for instance to exclude cabbage white butterflies), it can be turned into a vertical ‘fence’ at least 60cm (2ft) high and placed around crops to help foil low-fliers such as carrot fly. Horticultural fleece can also be used.

For more targeted protection, cabbage collars are used to prevent cabbage root flies from laying their eggs. To make a cabbage collar, simply slit a circle of thick cardboard to the middle then place it around a brassica plant’s stem at the soil line.

If codling moths on your apples are a problem, you can use sandwich bags to make the fruits inaccessible.

Pests can sometimes infiltrate your garden among the leaves or in the potting soil of shop-bought plants, so if you buy (or are given) young plants always check them carefully for signs of pests before introducing them to the garden.

If you’re regularly affected by a particular pest, it can be worth looking for early or late varieties of plants which may avoid becoming part of a pest’s rations if they’re not growing at the high-risk time.

Ladybird larva feeding on whiteflies

2. Improve the Garden Environment

Many pest predators, such as hoverflies are also nectar lovers and pollinators, so grow battalions of flowers near – or even in – your vegetable patch. Also try trap-cropping using a pest’s favourite food to make your crops less appealing to them.

Make sure your garden provides year-round shelter for allies such as frogs, toads, insect-eating birds and beneficial insects such as ladybirds and hoverflies. Simply leave some areas of your garden unmanicured, or you can install a bug hotel.

It is important to keep the immediate vicinity of your vegetable beds tidy. Compost any remaining plant debris from the beds once the crop is cleared to prevent pests hiding out under leaves or in dead stems, and give greenhouses and polytunnels a good clean once a year.

Frog

Practice crop rotation to help prevent a build-up of crop-specific pests in the soil, and if you have suffered from a soil-borne pest such as wireworm it’s a good idea to dig or at least disturb the top few inches of soil with a fork between crops – this will expose any grubs or other pests to insect-eating birds. Or, if you keep chickens let them search and destroy for you!

Healthy soil helps to make your plants strong enough to resist insect attacks, so add organic matter regularly – annually at the very least, and preferably more often. Mulching will also help to suppress weeds (which can sometimes harbour pests) while encouraging pest-munching ground beetles.

Hold your nerve, and if your predatory platoon of frogs, hoverflies, ladybirds and so on is in place, you can achieve, if not an outright conquest, then at least peaceable relations with all the inhabitants of your garden. In very extreme cases, if all else fails, use certified organic pest control products. It’s important to follow the instructions on the label very carefully.

Hoverfly

Despite my tongue-in-cheek warfare references, it’s important to remember that we’re not really in a war against pests. A pest is just a creature that likes the same food we do, so show some tolerance, protect what crops you can, and use nature’s own balancing system to ensure your crop doesn’t get munched before you have time to harvest it. And don’t forget to report any pests you see at BigBugHunt.com.

What’s your favourite earth-friendly way to protect your garden from pests? Share it with us by leaving a comment below.

Plants Related to this Article

Bugs, Beneficial Insects and Plant Diseases

< All Guides

Garden Planning Apps

If you need help designing your vegetable garden, try our Vegetable Garden Planner (for PC & Mac) or if you'd prefer an app for your mobile or tablet device, our iPad & iPhone app Garden Plan Pro is available on the App Store here.
Garden Planning Apps and Software

Vegetable Garden Pest Warnings

Want to Receive Alerts When Pests are Heading Your Way?

If you've seen any pests or beneficial insects in your garden in the past few days please report them to The Big Bug Hunt and help create a warning system to alert you when bugs are heading your way.

Show Comments



Comments

 
"A couple of simple techniques you can try: 1: Grow plants of the same type in different places around your garden, rather than all in one block, so that pests have more trouble spreading from one plant to another; 2: Plant or sow in abundance, so that you can accept some losses and still have a good crop at the end of it."
A Forest Gardener on Sunday 9 August 2015
"Allow a few sacrifice plants that can become nurseries for the predators! Also, any spiders you find in your house, don't kill them, but collect them with a glass and a piece of cardboard (trap them under the glass then slide the cardboard over the top) and take them out to those plants that are loaded with aphids, especially great on brassicas! I've even done this for fruit trees... you just need more spiders! :)"
Laurel on Monday 10 August 2015
"Do not shoo out wasps and hornets out of your garden especially if you plant coles. They will hunt for the green worms and can get most of them. Plant nectar flowers for additional attraction. Many of these eat both meat and sweet. "
hawkeye on Wednesday 19 August 2015
"Fantastic read. Love the sandwich bag idea!Personally, of the points discussed, crop rotation has been the biggest lesson I've had to learn over the years. I now plant break crops every other season and haven't had an issue since. Obviously not a viable option for everyone, but it's nice to be able to cut that out as a worry. Now if I could just work out how to find more time in the day, and I might actually be able to get these tomatoes planted..."
Jason_H on Thursday 20 August 2015

Add a Comment

Add your own thoughts on the subject of this article:
(If you have difficulty using this form, please use our Contact Form to send us your comment, along with the title of this article.)

 
   
(We won't display this on the website or use it for marketing)



Captcha


(Please enter the code above to help prevent spam on this article)



By clicking 'Add Comment' you agree to our Terms and Conditions