Sprays which include ingredients like pyrethrum, plant or fish oils are ideal for tackling aphids without damaging your plants. However, when I first discovered the infestation, the temperatures were too cold for ladybugs to survive (even in the greenhouse), so I knew I had to find a different method.

This also kills the eggs and the larvae so don’t forget the undersides of the leaves and in the leaf axils. I left mine only six days because I was impatient though my next lot brewing now will infuse for two weeks. Spraying with chemicals can stunt the growth of the plants and are harmful to other insects that will feed off the greenfly, such as ladybugs and hoverflies. Pungent-smelling plants like sage, onions, garlic, and nasturtium, grown alongside susceptible plants may help deter aphids. In late summer or autumn, winged females fly off to lay batches of brown or orangey eggs in the bark of plants or in other protected areas.

Beneficial insects, such as ladybirds, microscopic wasps, hover flies and lacewings, feed on the aphids and are a great way to naturally control plant pests. These include Flupyradifurone (Provanto Smart Bug Killer) for use on ornamentals and selected edibles and the neonicotinoid insecticide acetamiprid (e. Our Nautral Green Fly Repelient protects the ornamental plants and gives quite good coverage to other various edibles against the aphids, whiteflies, and caterpillars for up to 4 weeks. Arguably the best and most environmentally friendly way to get rid of greenfly is to encourage predators which munch their way through the aphid population without you needing to lift a finger!

The havoc-wreaking greenfly can be prevented in a number of ways including to remember not to overfeed plants with too much nitrogen fertiliser so that your plants can become a little more hardy between new growth, minimising the growth minimises numbers of aphids. Special Offer – Reuse the RTU Bottle using the concentrated bottle – refill it 6 times with a 500ml concentrate. The life cycles of each aphid species differ in general for much of the year, aphid colonies consist of wingless females that give birth to live young.An additional problem caused by greenfly and blackfly is the sticky substance they exude, known as honeydew, which can become infested with black mould – this stops leaves photosynthesising and inhibits plant growth. This natural fly spray features an eco-safe formula that's safe for the entire family and the environment. Don’t over-feed your plants with a high nitrogen fertiliser as this encourages a lot of new sappy growth which is exactly what the aphids love. My organic pest control spray is one option (it uses onions and garlic to deter critters), but most of the time, insecticidal soap is recommended for aphid control as well as other smaller insects. A systemic insecticide (BugClear Ultra) – which also kills on contact – is absorbed by the leaves and moves all around inside the plant, so will control future attacks from insect pests, for up to two months.