ROSE WEEVILS

Photo Courtesy:

http://sactorose.org/ipm/15coleops/15roseweevil.jpg
 

Rose Weevils begin as eggs, hatch into larvae, then pupate into adults.  The adults emerge from the soil in the Spring, seeking rose buds on which to feed and lay eggs.  They are about ¼” in length, resemble the ladybug, but do not have spots, and have an extended snout, which they use to drill holes in the rose bud petals.  This produces the most damage to the plant, as the buds will sometimes wither, die, and fall to the ground below.  The eggs hatch, and the larvae feed on the roots, many times attaching themselves to the crown of the plant, thereby killing it.

Should the flower survive the rose weevil damage, it will be riddled with small, but unsightly holes.  One would do well, to find the adult, catch it, and pinch its snout off so it won’t lay any more eggs. 

Predators of the rose weevil include lacewings, lady bugs, lady beetles, minute pirate bugs, soldier bugs, and birds to name a few.  If you want beautiful roses in your garden, you do not want these guys, but you also do not want to use a pesticide or insecticide.  They will destroy the good guys as well.

Sources:

http://www.movingplanets.com/world/animals/insects/

http://sactorose.org/ipm/15coleops/15roseweevil.jpg

http://sactorose.org/ipm/84rosecurculios.htm

http://www.marinrhttp://ucanr.edu/sites/VCMG/Fighting_Common_Rose_Pests/ose.org/rosecurculio.html

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