Some plants in my greenhouse have whitefly, as do some of my outside garden
plants. Do the whitefly need getting rid of (insecticidal soap) or will it
they simply die off naturally with the coming colder weather?

Thanks.

: Some plants in my greenhouse have whitefly, as do some of my outside
: garden plants. Do the whitefly need getting rid of (insecticidal
: soap) or will it they simply die off naturally with the coming colder
: weather?
:
: Thanks.

I think there is a biological predator for whitefly where you release it in
the greenhouse and it does the business. I'm sure someone will know for sure

"Janice" wrote in message
...
Some plants in my greenhouse have whitefly, as do some of my outside
garden
plants. Do the whitefly need getting rid of (insecticidal soap) or will
it
they simply die off naturally with the coming colder weather?

Thanks.
Don't know how you feel about sprays - our melon plants were badly infested.
We used a systemic spray in May. It only affects insects that attack the
plant - harmless to bees, hoverflies etc.
We have had zero whitefly since.

In article ,
(Janice) wrote:

whitefly, as do some of my outside
garden plants. Do the whitefly need getting rid of (insecticidal
soap) or will it they simply die off naturally with the coming colder
weather?

I understand that the whitefly you get on brassicas doesn't go away with
colder weather. I know of no natural predator. Usual advice is
permethrin spray every 3 days until they're dead which may take some
time.

Steve Harris - Cheltenham - Real address steve AT netservs DOT com

: Some plants in my greenhouse have whitefly, as do some of my outside
: garden plants. Do the whitefly need getting rid of (insecticidal
: soap) or will it they simply die off naturally with the coming colder
: weather?
:
: Thanks.

Found it, I knew I had seen it on TV
http://www.defenders.co.uk/whitefly_control.htm