Hello, After spraying liquid Sevin on my two rose bushes last month, they have continued to "die". They were beautiful, deep green leaves full of tiny buds, and they look horrible now. The makers of Sevin have been no help at all and at this point, I just want to know whether they will come back next year or if all hope is lost. FACTS: I sprayed and it was in the mid-70's outside. If temps were going to drop, I brought them in an insulated garage. I have always used powder Sevin on my roses with no trouble. Even the greenery below the roses is dying daily. I appreciate any assistance!