The _twelve-spotted cucumber-beetle_ may be controlled by the same measures and by spraying with lead arsenate. Egg-plant is subject to the same pests as the potato. Kale and Kohlrabi are attacked by the same insects that attack cabbage. Muskmelon is subject to the same insects as the cucumber. Onion.—_Thrips_ is a tiny insect which infests onions, sucks the sap from the leaves, and causes them to assume a silvery appearance. Most vegetables are subject to its attack. It can be controlled by using a contact spray, such as nicotine solution or kerosene emulsion. Potato.—The most troublesome insect pest of the potato is the well-known _Colorado potato-beetle_. This may be controlled by picking the insects from the plant by hand, or by dusting the leaves with Paris green which has been diluted by mixing it with fifty times its bulk of air-slaked lime. Spraying the plants with lead arsenate is even more effective. The _flea-beetle_ eats small holes in the leaves, making them appear as if they had been riddled with shot. The spray treatment adopted for the _Colorado beetle_ will also take care of them. _Blister-beetles_ are slender insects varied in color which attack potatoes and many other vegetables. Lead arsenate is the best remedy. Pumpkin is likely to be affected with the same pests as cucumber and squash. Squash.—This crop is subject to the same pests as cucumber. The _squash-bug_, or _stink-bug_ (which also attacks cucumbers and melons), is grayish-brown in color and about three-fourths of an inch long. It exhales a very offensive odor which makes hand picking, one of the most effective means of controlling it, an extremely unpleasant task. The measures adopted against the _cucumber-beetles_ are also effective in controlling this pest. Other remedies that may be tried are the collection and destruction of the conspicuous eggs which are to be found in masses on the under sides of the leaves, and trapping the adults by placing shingles on the ground around the plants. The insects will congregate under these and can then be destroyed by stepping on them. Tomato.—The _tomato-worm_, the larva of a Sphinx-moth, sometimes occasions much damage. Hand picking is a good remedy, or the plants may be sprayed with lead arsenate. If the latter course is followed, care must be taken to clean the tomatoes thoroughly before eating them. The tomato is also subject to the same insect pests as the potato. Watermelon is attacked by the same insects that infest cucumbers. Practically all vegetable crops are subject to attack by the following insects: