ambrosia/pin hole borer insecticide

[youcallthatbig]

Afternoon all.

 

having taken delivery of about 4500hft3 of planking/beam  oak and ash in the last few weeks, I am endeavouring to find a solution /prevention of the attack from the little black beasties for obvious reasons.

 Has anyone got any recommendations, I have looked at the "forest research" guide leaflet , and have got some "forester" insecticide coming, active ingredient being cypermethrin, a synthetic pyrethroid, this apparently is probably going to be the only chemical available in the short term for this useage, all other brands of insecticide on the leaflet seem to use an active ingredient that is now considered banned for knap sack spraying (chlorpyriphos,an organophosphate) but is suitable for mechanical spraying of brassicas.....

My concern is that forester is primarily used in the treatment of weevil on pines, and does not mention the pin hole/ambrosia beetle when listing insects that bore etc etc.....here's hoping that time and money will not be wasted.

 

any body got an alternative known preventative measure?

 

Tim

[Ash]

Should work as it actively kills the wee beasties, we have used it on yew staves laid down for longbows and ash sawlogs. It kept everything off so it is cracking stuff even with the hefty price tag. Be careful when applying it though as cypermethrin is also a heavy duty neuro toxin.

 

Ash