ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Controlling Aphids

Updated on November 12, 2012
Close up of an aphid.
Close up of an aphid. | Source

What Are Aphids?

Aphids are sap suckers. They are found throughout the world and have been around for millions of years. As a species they are enormously successful and consequently hated by farmers and gardeners alike. There are many types of aphid; in the UK and Europe they are often known as greenfly, blackfly or even white fly, and every gardeners heart sinks when he or she finds the tell tale signs of infestation on a healthy plant.

Greenfly in particular are invisible at a distance, but I have vivid memories of the first time I found a rose bush covered in them, it was only close up that I could see the green stem was actually a mass of tiny insects, all feeding on my lovely flowers!

Just as there are many types of aphid, there are many ways to keep your plants free of them. The aim of this hub is to explore a few, with an emphasis on avoiding unpleasant chemical sprays.

Aphids feeding on a plant
Aphids feeding on a plant | Source

How to Tell if You Have an Aphid Problem

There are more than 4000 species of aphid, of which around 250 represent real problems for farmers and gardeners. Aphids feed on the sap of a plant by sucking and most species (not all) are monophagous; they feed on only one type of plant. Aphids typically pierce the stem of the plant to access the phloem, the part of the plants circulatory system which carries nutrients, and this is the aphids main source of food.

Aphids can be extremely small, less than a 1/10th of an inch, so a small infestation can be difficult to see, however these insects are so common that any plant which doesn't seem to grow well, has yellow leaves, curled leaves or generally stunted growth, is likely to have an aphid problem. The removal of sap reduces the plants food supply, aphid saliva is toxic to the plants and the insects often transmit plant viruses. While many insects have an 'up-side' in that they can be beneficial to plants in some way, aphids do not. They are a problem wherever they are found, hence gardeners with ailing plants are always looking for a good way to get rid of them.

Soapy Water

My grandmother suggested this and I remember filling a garden spray with water and washing up liquid then rushing out to the rose bed. With only one rose badly infested this worked pretty well, though you do have to really soak the rose stem. Of course it's much easier now - you can by soap sprays from amazon, and they're all ready to go!

I've also tried this on hanging baskets which can be really devastated by black flies, and so far it works pretty well, but if you have room for some more flowers in your hanging baskets, there is something else you can try.

Annual Nasturtiums

An annual nasturtium flower. You can find them in orange red and yellow, some even have variegated leaves.
An annual nasturtium flower. You can find them in orange red and yellow, some even have variegated leaves. | Source

Grow Nastutiums

I adore nasturtiums and try to grow them every where, they have a wonderful taste and are really good in salads, but they also look fantastic in pots, flower beds and most especially when trailing over the side of hanging baskets. When I plant up a hanging basket I fill it as much as I can and then add a packet of nasturtium seeds. It looks good and the nasturtiums attract the black fly which then tend to leave the other plants alone. Since nasturtiums are annual plants this is not really a problem. They also attract predatory insects who help to keep the aphid population down.

Since many varieties of nasturtium are climbers, add some seeds at the base of your fruit trees and they'll help to keep them aphid free.

DIY Aphid Repellant

When I lived in England, we had a large walled garden and a fantastic gardener called Roger who became a good friend. He was a in his late seventies and full of useful information on how to keep the garden at it's best. Roger's method of aphid repellant was fairly typical. He gathered the nettles which grew at the edges and added some wormwood leaves, then soaked them together in a bucket of water. When he came back the following week, he sprayed the plants with the mixture. We had a small orchard at the bottom of the garden, we had some lovely fruit, and no aphid problem

At the front of the border he planted marigolds, and since we had no real insect problem, I can only assume that was another effective measure.

If All Else Fails

I don't like to use chemicals in the garden, I don't feel qualified, so I'm much happier to organize 'trap crops' like nasturtiums as this will, to some extent allow me to ignore the problem. However, when my roses are involved, I feel especially protective, but my experience is that, at least for small infestations, chemicals are really not required. If you have a high pressure hose, set that on your roses, a high pressure water jet will dislodge the insects, and pretty well everything drowns. Just be sure to do it regularly. One day there may be a 'one time only' solution to the aphid problem, but as far as I know, that day is yet to come.


    0 of 8192 characters used
    Post Comment

    No comments yet.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)