My bonsai, a Chinese Juniper which I leave in an unheated garage all winter, recently developed a strange growth after being brought outside: about 2 dozen fingernail sized, gelatinous, odorless, orangey-brown blobs were stuck to the branches. A few days later, when the weather was drier, the blobs had shriveled and were almost invisible. After a few more wet days, they returned but only partially. Now there's just a tiny bit of brownish sticky residue where they were. Coincidentally, I've recently seen a similarly-colored sticky substance (not sap) on the branches of a large coniferous shrub (possible another type of juniper) in my neighborhood. Do you have any idea what this stuff is, and if it's harmful , how should I treat it?