IF you have a vegetable garden May and June are the months when the weeds try to take it over. They seem particularly aggressive this year, probably because May was rather wet and the soil is still holding a lot of moisture. So I’m spending time using the hoe, or on my knees hand-weeding the spots where the hoe is too indiscriminate a weapon. This year, however, I have a new interest. I’m looking out for the forget-me-not shield bug.