I'm developing a hatred of pheromones. I've spent too many hours staring at the bloody things hanging from a tree/bush/stick waiting for the patter of tiny wings to arrive. Today I targeted a good area of young birch (for White-barred Clearwing), cleared birch (for Large Red-belted Clearwing) and oak parkland (for Yellow-legged Clearwing). I know that one of the sites I visited has recorded the target species before (including last weekend) - so what am I doing wrong?
The flight times are OK. The habitat is OK. I've started to wonder if my pheromone bungs have not been impregnated with the magical chemicals at all! But, having said that, I know that my Six-belted Clearwing lure works OK as that provided my sole success last summer.
I'm leaving the lure out for 20-30 minutes. It's always been a sunny day (with at least a slight breeze). I'm beginning to lose patience... but, of course, I must not give in.
Today wasn't a moth-free zone as I recorded the garden's first Grass Rivulet last night. Better late than never.