Gardeners, please help me!!
My two forsythias that I bought 2 years ago has got weird growth on part of the leaves which has caused some of them to fall down (didn't notice the state of the actual leaves until now). Some branches that lacked leaves all together, I chopped off, but the remaining plant looks fine. I'm baffled, what is this odd growth?? These spikes are hard, like crusty new tiny branches popping out from the leaves themselves (sounds crazy, yup) and some have penetrated the leaf itsef. If anyone knows how to treat this, I'd be very grateful for your help! I didn't see any crawling bugs on the shrubs otherwise, but since I couldn't find any similar images online, I need help with this oddity, thank you!! ❤