Top 10 Best Insecticides for the Garden in the UK 2021 (Provanto, Nuedorff and More)

Arriving in the UK in the 18th century and proceeding to munch their way through our thick vegetation and subsequently thrive in it, woolly aphids are very much an unwanted pest. In fact, there are over 500 sub-species wreaking havoc on our shores, making them a serious problem for the avid gardener.

This organic woolly aphid killer is loaded with a natural chemical called chitinase which sets to work destroying the chitin exoskeleton of these pesky critters. Not all reviewers were convinced of its effectiveness against their particular infestation, but it's worth a try if you're keen to take the natural route. 

However much you admire your front garden's flourishing rose bushes, you might have noticed that the local bugs like to eat them even more. Toprose's Bug Killer has been specially formulated to protect your precious petals from rose-loving insects like greenfly, blackfly, leaf beetles and caterpillars. 

The only problem is that although this ready-mixed spray will curb any infestations on your roses and ornamentals, it doesn't come approved for use on edible plants. This product, therefore, will be a great pesticide for some gardeners but not for others. 

German company Garten Glück are on a mission to make urban growing chemical-free. Their healthy fertiliser and growth booster range use natural oils and remedies for a lighter environmental impact. 

This repellent uses neem oil to kill off those dreaded box tree caterpillars, moths and aphids while also bringing a healthier shine to your plant life. Just tread lightly where the dosage is concerned as some users have commented on the stuff being so powerful that it proceeded to wither the leaves they were trying to save.

If you're constantly treading on snails and finding slugs finishing off your salad leaves for breakfast, then Natria's slug and snail control is for you. It effectively baits these pests away from plants and, once consumed, will force them underground. It'll then biodegrade into iron and phosphate, enriching the surrounding soil. 

Yes, technically these pellets aren't insecticides. But, with slugs and snails being a persistent problem here in the UK, we're guessing that this is exactly what many of you are looking for. A clever, natural way of eliminating the snail trails across your prized plants.

This organic, cruelty-free and handmade insect and spider spray is a great one to have on hand for both indoor and outdoor use. The eco-friendly blend bodes well with keeping the natural order of your garden thriving while seeking to destroy its troublesome insects. 

Plus, if you've got an ant or moth problem, be sure to click through as C&G have other special formulas available too. However, it must be known that organic products rarely benefit from the same total domination that chemical insecticides are known for, and in the case of this spray, a few reviewers were left dissatisfied with its results. 

This is a high-powered bug-killing concentrate that should not be taken lightly. It's so strong, in fact, that it only needs to be used twice a year regardless of the plant variety. It should also be applied seven days prior to harvest time to ensure safe eating for all.

Vitax is intended to eradicate any and all aphids, caterpillars and beetles that have taken up residence on your rose bushes or vegetable patch, and it is certainly effective. Due to its potency, try to be mindful of pets and children getting too close to the plants after application.

Resolva's Bug Killer is another powerful insecticide that's primed to remove all flying and crawling insects from your prized plants. Coming in a ready-to-use spray bottle allows you to place an order today knowing that you'll be effectively spraying away your pest problem tomorrow. 

The safe pre-harvest time and treatment interval of the spray differs quite dramatically depending on the crop you use it on, so be sure to read the label carefully before use. Nonetheless, this is a potent spray with proven results for those that need them now. 

Claiming to end the lives of all major UK insect pests – including whitefly, greenfly, blackfly, aphids, scale insects, mealybugs and red spider mites – it's clear that Miracle-Gro's Bug Clear Ultra means business.

This highly concentrated 200 ml formula will make 20 litres of spray once diluted to give you plenty of bug-killing action, and if treating houseplants or ornamentals, you'll only need to apply every 3 months. With an extended pre-harvest time of 14 days too, this is as potent as they come and is sure to leave you with fantastic results. 

Unlike other organic insecticides with mixed results, there is simply no denying the effectiveness of this bug and larvae killer. It is the go-to for every gardener who enjoys keeping things natural but doesn't fancy the uncertainty surrounding most non-chemical insecticides. 

This is a strong concentrate that is loaded up with pyrethrum to ensure the effective eradication of most common insect pests. It's so safe that you can even use it on harvest day, giving you plenty of garden-to-table confidence in your crop. 

Provanto's Ultimate Bug Killer is the undisputed favourite insecticide of the nation for professional and amateur gardeners alike. It's fast-acting, comes ready to spray and is proven to give your plants up to two weeks of protection. 

As well as putting an end to persistent garden pests, it also prevents any consequential leaf diseases and works to prevent further attack. With thousands of happy reviewers on Amazon, this is a globally recognised way of taking back control of your garden and its flourishing inhabitants for good.