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1. Every Friday post a photo that includes one or more flowers.
2. Please only post photos you have authority to use.
3. Include a link to this blog in your post -
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Thursday 30 July 2015


Aphids, also known as plant lice and in Britain and the Commonwealth as greenflies, blackflies, or whiteflies (not to be confused with "jumping plant lice" or true whiteflies), are small sap-sucking insects, and members of the superfamily Aphidoidea. Aphids are among the most destructive insect pests on cultivated plants in temperate regions. The damage they do to plants has made them enemies of farmers and gardeners the world over, though from a zoological standpoint they are a highly successful group of organisms.

Their success is due in part to the asexual reproductive capabilities of some species. About 4,400 species are known, all included in the family Aphididae. Around 250 species are serious pests for agriculture and forestry as well as an annoyance for gardeners. They vary in length from 1 to 10 millimetres. Natural enemies include predatory ladybirds, hoverfly larvae, parasitic wasps, aphid midge larvae, crab spiders, lacewings, and entomopathogenic fungi such as Lecanicillium lecanii and the Entomophthorales.

There are various insecticides that can be used to control aphids, including synthetic insecticides and plant extracts/products that are thought to be more eco-friendly. For example, neem and lantana products can be used to protect plants against aphids. For small backyard infestations, simply spraying the plants thoroughly with a strong water jet every few days may be sufficient protection for roses and other plants. An insecticidal soap solution can be an effective household remedy to control aphids and other soft-bodied arthropods. It will only kill aphids on contact and has no residual action against aphids that arrive after application. Soap spray may damage plants, especially at higher concentrations or at temperatures above 32 °C. Some plant species are known to be sensitive to soap sprays.

Integrated pest management of various species of aphids can be achieved using biological insecticides based on fungi such as Lecanicillium lecanii, Beauveria bassiana or Paecilomyces fumosoroseus. Aphids may also be controlled by the release of natural enemies, in particular lady beetles and parasitic wasps. However, since adult lady beetles tend to fly away within 48 hours after release, without laying eggs, it requires repeated application of large numbers of lady beetles to be effective. For example, one large, heavily infested rose bush may take two applications of 1500 beetles each. In reality the only cost effective situation in which mass release of natural enemies makes sense is in closed or semi closed environments such as glasshouses or polytunnels.

This post is also part of the Friday Greens meme.

Join me for Floral Friday Fotos by linking your flower photos below, and please leave a comment once you have done so.
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  1. Hi Nick,
    an Artwork of Nature and a fanastic shot whit structure and pattern.
    Best, Seraphina

  2. A great shot! Both adults and babies having a party!

  3. Aphids make me buggy! Yom The Backroads Traveller

  4. That poor flower! It is a good shot. The bugs on one petal look drawn on and one dimensional and the others are three d.

  5. Didn´t recognize the bugs at first. Thought it belonged to the flower. Nice picture.
    BR Marika

  6. am feeling sorry for this beautiful flower! But your clever capture makes the aphids like a part of the flowers.

  7. Oh my! Such an invasion of the small green critters.....

  8. Oh my! Such an invasion of the small green critters.....

  9. Oh my goodness!! Hope you can get rid of them!

  10. they are not a treat to have in the garden even though you have managed to make them look quite pretty on the flower.

  11. Oh no! I hate those little buggers. Thanks for the info on them, we all have to deal with them at some point in the garden.

  12. Such a great shot, fantastic !

  13. Eek! I'd freak if I saw them in person and feel bad for the flower, but your amazing photo makes them look like they belong there ...

  14. If this was a fabric it would be beautiful.
    Amazing shot!

  15. Dear Nick,
    what a great shot, so amazing.
    I love the picture......

  16. Sorry I'm late, Nick. So did you decide not to do the Silhouettes meme? I liked it!

  17. This is a great shot even if it does have aphids!

  18. What a great shot! I hate those little critters on my flowers...