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S AU
02:44PM, 20 Oct 2009
Answer: Beans need warm temperatures for good germinati...
Category: Vegetables & Herbs
Expert
02:44PM, 20 Oct 2009
Roxanne
could there be bean fly in Melbourne, my beans are flowering and some stems are brown and shrivelled

I first noticed leaves drying out on some plants and then the plant died and the lower stem was brown and shrivelled. There have been small black flies on the leaves and some new leaves on other plants look as if they have shrunk with veins standing out somewhat, this effect I have never seen before

Submitted: 03:28PM, 12 Dec 2011
Answer: Hi Roxanne,
I have attached an article on the bean fly from the QLD DPI showing the adult fly. It is normally a pest in warmer regions further north.

http://www.dpi.qld.gov.au/26_7803.htm

There is also a disease called bacterial brown spot which affects beans. Small rounded reddish-brown spots on the leaves develop and also spots on the stems. The disease is spread in cool showery weather and may spread from plant to plant. Fungus fighter which contains copper hydroxide will control this disease and also halo blight of beans.

Category: Vegetables & Herbs
Tags: disease, Beans
Answered: 12:49PM, 14 Dec 2011

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