Hybrid tea Roses have white waxy caccoon looking growths on several plants in new mexico (*zone 7). Never had this problem in 10 years until now and started late summer. Seem to be killing stems/leaves on three plants. Simular in size to spittle nests but not bubbles, more the consistancy of ear wax. What are they, how to control, and concern about spreading to other roses, that is will they kill. Will get pictures. here is pic -- cacoons on right more focused then cacoons on left. I really don't know roses and so can't help this person -- any help would be apreaciated!