- Location
- Darlington
Well you can get a doctor's meeting on the internet now why not agronomy?The usual threshold for spraying oilseed rape is 25% of plants damaged or the damage is faster than the crop can get away from it. Cooler wet weather will help slow the flea beetle down and speed up crop growth. Rain will not stop them. Has the kale had all its nitrogen? Give it the best chances for growth rather than chuck ineffective sprays at it!
If you must spray, you ought to have a BASIS registered agronomist advising. I am BASIS registered but not an agronomist nor will give a recommendation on the internet without seeing the problem!
How big is the crop? A photo would help.
Brisel internet agronomy devices could be the future.