Posted: 29/04/2013 at 22:20
With perfect timing, I looked at a large tub of heucheras and primulas yesterday, and, deciding that they really didn't seem to be thriving, decided to dig them up and repot them individually. The reason they weren't thriving was painfully obvious - hundreds of pesky VW grubs had chomped through the roots! I salvalged a few bits that had what may prove to be viable roots still attached, and drenched the new pots with Provado. I then turned the soil over in the tub and spread the grubs out on a tray, much to the delight of Mrs Blackbird, who clearly has a hungry brood to feed. The residual tub of compost, doubtless still infected with some grubs etc. was also given the drench.
As I type this, there is an item on the news about the decline in bees, and the possibility of the link with certain pesticides. Now, when I took the action that I did yesterday, I hadn't realised that neonicitonoids and Provado were effectively one and the same. I shall think long and hard before considering its use again should I see the need.
For once I do find myself in agreement with the European proposal for a suspension of the use of these products while further research is carried out. But experts don't seem to be able to agree, so I hope they really do crack on with the research and find the answer.