Just a heads up that it's caterpillar time again and if you are growing vegetables, they can decimate your crop. We use two strategies - one is we spray using water that we've steeped a head of garlic in - this makes the vegetables unappealing to those beautiful little butterflies that flit about your plants. The second is we pick them off. You can also use aromatics (mint and other plants) to keep the pests away. Any other strategies .. post a comment and help Hong Kong's gardeners.