RaspberryCaneBorer Info: Learn About CaneBorerControl.Raspberrycaneborers are beetles that live their entire life cycle on cane plants. They are laid as eggs just below the tip of the plant. Controllingraspberrycaneborers. Questions about this information?Raspberrycaneborer, Oberea bimaculata Oliver, is a beetle pest of raspberries that is widespread in Michigan. The beetle lives its life feeding on raspberries. The adults emerge in June. For control of raspberrycaneborers, the plants can be sprayed with a pyrethroid insecticide in late spring after the new growth has matured somewhat to prevent the beetles from laying eggs. Pyrethroid insecticides are widely available in the garden section of big box stores. Raspberrycaneborers attack blackberry and raspberry plants.I’ve discovered that controllingraspberry stem borer is best achieved by observing my raspberry patch carefully throughout the summer for the distinctive pair of circular rings below wilted cane tips. Recognizing CaneBorers and their Damage. Raspberrycaneborer larvae are small, thin and light in color. They can be seen feeding their way down the inside of raspberrycanes if you were to cut open an infested cane lengthwise. The adults are active from late June to early July. Though damage from the raspberrycaneborer (Oberea perspicillata) is often seen, the insect itself is rarely recognized as a pest. It usually causes only slight or occasional injury, although, when abundant, it can cause considerable damage. However, it is easy to control. CaneBorerControl. Rednecked CaneBorers are an important pest of raspberry and blackberry plants from the Gulf of Mexico throughout the Eastern United States and into Canada. The raspberrycaneborer is a ½ inch long black longhorned beetle (family Cerambycidae).The red-necked caneborer is a blue-black, metallic wood-boring beetle (family Buprestidae) about ¼ inch long with a dull coppery color on the prothorax (the area just behind the head). I have never seen the rednecked borer but the raspberrycaneborer is pretty common.Controlling the is pretty simple. The wilting shoot tips you describe are the result of girdling the stem after the female lays an egg in the stem. Unlike the raspberrycaneborer, the flat-headed borers burrow into the cane as larvae (instead of hatching within the cane). This burrowing causes a swelling or gall in the cane where the grub has forced its way in and out. The swelling will often look blistered and brownish. Cane blight on raspberry (Rubus). Overview. Cane blight of raspberries is a late-season disease caused by the fungus, Leptosphaeria coniothyrium.3. Prevent damage and wounds to canes by controllingcaneborers. Controllingraspberrycaneborers. Wilting shoot tips signal that this easy to control pest has found your raspberry patch.Ready to get rid of vine borers for good? Prevention is the best cure! Replant now, and use this simple method to outsmart the vine borers. · The raspberrycaneborer causes wilted and drooping tops of canes. To prevent the white larvae from tunneling down further into the cane, prune off the cane tops at the earliest sign of the insect. Destroy pruned branches containing the insect. RaspberryCaneBorer Attack by the raspberrycaneborer on blackberry, raspberry and rose results in tip die back and cane death. Damage is readily identified with this insect by two rings of punctures about 1/2 inch apart and located 4-6 inches below the growing tip.