If you’re wondering what’s making you sneeze or why the car is now pale green, there’s a simple and quick way to get a look. Tonight or any night for the next few weeks, wait till it’s good and dark and take a flashlight outside. (Get close to a wooded area if you want the full effect.) Shine the light up away from you and take a look at what is illuminated by the beam. This is that time of year when, as botanist Ritchie Bell used to say, “the trees are getting frisky.”