What can I do about Rosemary Leaf Beetles

Ugh, these r nasty, r not they?! Here is some different ideas:

Organic

-Regular observation in late spring each year is essential to prevent infestations establishing.
-Removing adults & larvae by hand will help to reduce numbers. Shaking infested bushes over an old towel or sheet will enable large infestations to be collected & removed.
-Netting & fleeces can be used to stop adults moving between plants.
-There r currently no natural enemies commercially available to control rosemary leaf beetle.

Prevention

-Check plants on a weekly basis for signs of infestation & deal with them as soon as they appear.
-Encourage insectivorous birds by hanging feeders in the winter & provide nesting boxes in the spring.

Some chemicals u can try are:

Imidicloprid
Bifenthrin
Pyrethrum
Natural fatty acids
Surfactant-based products

Goodluck!