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Produce => Pests & Diseases => Topic started by: tim on June 12, 2005, 08:59:42

Title: Greenfly, Blackfly, Whitefly, yes -
Post by: tim on June 12, 2005, 08:59:42
- but Brownfly??

Give us a break!!

And who do the eggs belong to?
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: northener on June 12, 2005, 09:12:54
Urgh. What plant is it? They look like Mites.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: Robert_Brenchley on June 12, 2005, 09:35:07
Those look like butterfly or moth eggs. I can't be certain though; insect anyway.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: tim on June 12, 2005, 10:49:27
Aubergine.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: redimp on June 12, 2005, 12:49:05
Greenfly can be a variety of colours and brown is quite a common one.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: tim on June 12, 2005, 17:02:08
Stupid arrangement!!
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: beejay on June 12, 2005, 18:01:15
We could be boring & just call them apids I suppose, then you dont have to decide what colour they are!
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: beejay on June 12, 2005, 18:02:41
Oops, aphids might have been better!
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: ellkebe on June 12, 2005, 19:40:33
In my previous garden all the aphids were green and in this one - two years later and only ten minutes down the road - they're all brown.  But they're still the same b****y nuisance  :D
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: Charlotte Sometimes on June 14, 2005, 15:28:36
Yes, Tim, we've got some of them too.  They were on the sunflowers in our ramshackle greenhouse (wooden, rotting, impossible to clean), aka "The Greenhouse of Doom".  I only use that for sunflowers, we have a leanto on the house which is for the veggies/posh bedding plants.

I agree with the previous poster - d**n nuisance!
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: tim on June 16, 2005, 09:20:32
Just a thought - if these chaps don't have wings, how do they appear in the g'house??

And another - for those considering predators, DO MAKE SURE that you screen your vents - or they will escape!!
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: aquilegia on June 16, 2005, 12:37:13
I've given up distinguishing between the colours and just call them b*****s!

How do they appear? You only need one and then you suddenly get millions of the little...

eggs - some kind of catepillar. Had some on my Aquilegias. So they (the eggs) had to go.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: Robert_Brenchley on June 16, 2005, 18:48:18
Some do have wings. They'll go several generations of wingless aphids, and then produce winged ones. They mostly reproduce by parthenogenesis (virgin birth); I'm not sure how common males are.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: redimp on June 16, 2005, 22:36:46
Quote from: Robert_Brenchley on June 16, 2005, 18:48:18
Some do have wings. They'll go several generations of wingless aphids, and then produce winged ones. They mostly reproduce by parthenogenesis (virgin birth); I'm not sure how common males are.

All of a sudden, greenfly are interesting.  There have been loads of winged greenfly around recently.  Do the winged ones fly in and then lay eggs leading to wingless ones who then multiply (I won't say breed) for a couple of generations and then some winged ones appear who go off and do the same thing somewhere else?

Phew - ran out of breath.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: Robert_Brenchley on June 16, 2005, 22:46:14
Basically, yes. I haven't studied aphids in any detail, but they also swop hosts, wintering on one species and summering on another.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: beejay on June 17, 2005, 11:19:45
If I recall correctly, when the food supply is good wingless females are produced, when food supply becoming short winged males & females are produced to fly on elsewhere & do their damage. Basically they take advantage of their situation to change their breeding habits appropriately.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: kenkew on June 17, 2005, 12:39:04
Could the eggs be ladybird?
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: Robert_Brenchley on June 17, 2005, 14:58:18
They seem a bit large when you consider the size of the adult.
Title: Re: Greenfly, Blackfly, Whitefly, yes -
Post by: jagger on June 20, 2005, 10:57:27
Just passing on a good tip regarding identification of adverse beasties on plants: 

Go to Google, click on "Images" above the text box, then enter say, "Lily Beetle", hit "Enter" and presto - lots of great pictures of said critter. This is also an excellent way of making sure you don't squish the eggs of beneficial beetles such as ladybirds.

Regards

Jagger