Spray your zucchini plants once a week with a solution of 1 part milk to 9 parts water. You can use any kind of milk available. This will keep your plants from getting powdery mildew, a serious threat to zucchini plants. | eHow
When a cucumber is taken from the vine let it be cut with a knife, leaving about an eighth of an inch of the cucumber on the stem, then slit the stem with the knife from its end to the vine leaving a small portion of the cucumber on each division and on each separate slip there will be a new cucumber as large as the first.