Question
I am here near Chicago. I brought the Jasmine plants indoors. They are close to a patio door and a hot air vent. some leaves are falling off, and there is a spidery web type covering on the buds and leaves. I have tried to wash it down with a spray bottle, but with limited success.

Answer
Hi Aslam..Some of your leaves could be falling off due to heat from the vent, moving it in from outside or not enough water and more than likely the bugs on the plant are sucking the life out of the leaves and they are falling off.  Get a magnifying glass and look under the leaves that are falling.  You could wash it off with soapy dish water then get either Neem Oil 100 per cent pure or an insecticidal spray for your plants.  I love the Neem as it is organic and doesn't wash off, for added protection in the future. Happy Holidays  kathy