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GMC girl May 4th 2018 7:19 pm

Neem Oil
 
Hi does anyone know if it is possible to buy Neem oil in Hungary ? Need to deal with the wonderful Colorado beetle...

Peter_in_Hungary May 5th 2018 12:00 am

Re: Neem Oil
 
Hi
I'm not sure about Neem oil but
The thing to use against the colorado beetle is Novodor. It is a biological insecticide containing Bacillus thuringiensis. It is approved for use in organic production. It does not kill the beetles but kills the lava. (it is the lava that do the damage).
A different strain of Bacillus thuringiensis contained in Dipel (also approved for use in organic production ) is used to control other troublesome caterpillars.

So it is Novodor for colorado beetle and
it is Dipel for other caterpillars.

You spray at the first sign of the lava. The colorado beetle lays the eggs on the underside of the leaves and the eggs are an orangey colour and the lava are redish with black spots

You can reduce the problem by not growing the potatoes in the same place as last year and as far away from your neighbours potatoes as possible. Some people, with only a few potatoes, control the beetles by frequent inspection and then knocking them of by shaking the plants over a bowl and then destroying them.


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