I thought things were going too well this season, apart from having to water every day all my veggies are growing like mad. Until a few days ago. I though it was squirrels to begin with but saw the culprit this morning, a big rat has taken a liking to my produce. Gnawing at courgettes and picking off the lower hanging tomatoes and peppers: I've set up a couple of ultrasonic animal scarers in my greenhouse and veg patch. Any other tips on how to discourage the pesky blighters?