However, major infestations are detrimental to the rose's health. The most effective treatment for sawfly larvae is removal by hand. Drop them into soapy water to kill them. You can also use your ...

Rose slug sawflies may have one or more generations per year and this is dependent on the species found on the plant. Adults emerge (Fig. 1), mate and lay eggs that hatch after about 10 - 14 days.

When spraying, focus on thoroughly coating both the tops and undersides of the leaves where sawfly larvae typically hide.

Grass Sawfly For initial detection in late April – early May, take 5 sweeps in 5 sites especially along field margins; Once larvae are detected examine five linear foot of row in 10 sites for the ...

Local arborists are encouraging Illinois residents to keep an eye out for a spreading invasive insect this spring. Jess ...

“The (wasp) is able to paralyze and incapacitate the sawfly larvae early enough to reduce damage,” Easterly said. Team Sawfly is investigating a new project that involves transporting the ...