Experiments conducted by the Louisiana State Crop Pest Commission are summed up in the following extracts from Circular No. 28: "Where the cotton plants were destroyed before October 15, only 3 per cent of the weevils survived the winter to infest the next year's crop. Where the stalks were destroyed from October 15 to October 27, an average of about 15 per cent of the weevils passed through the winter successfully. Where the stalks were destroyed between November 1 and November 25, an average of approximately 22 per cent of the weevil survived the winter. Postponing the fall destruction of cotton stalks until the middle of December, or later, permitted over 43 per cent of the weevils to survive the winter and attack the next crop." _Where the stalks were destroyed before October 15, only 3 per cent of the weevils passed the winter. Where the stalks remained in the field until December 15, over 43 per cent of the weevils survived the winter._ These figures certainly emphasize very strikingly the value of early fall destruction of the boll weevil's food supply. =Methods of Destroying the Food Supply:= With the importance of early fall destruction of the cotton stalks fully realized, the cotton grower has before him the question of how best to accomplish this. There are three methods of destroying the squares, bolls, and foliage of the cotton stalks: 1. Pasturing; 2. Plowing under; 3. Burning. [Illustration: A mature cotton plant that was late in fruiting. The joints are long and the balls far out from the center and base of the stalk. The limbs have few joints and few bolls. Height of plant, 3 feet; balls 26--10 in lower half circle. Do not plant this type in weevil territory.] Pasturing the cotton fields is a good method of destroying squares, bolls and foliage where the cotton fields are fenced and where a sufficient number of cattle can be turned into a field to eat all the squares, bolls, and foliage in a few days. However, let it be distinctly understood that the practice of turning just a few head of cattle into a fifteen or twenty acre cotton field accomplishes no particular good. Every cotton grower knows from his own observation that two or three head of cattle to an acre, even when confined entirely to the cotton field, will eat very little of the green foliage in one week, and it must be kept in mind that it is vital to destroy as quickly and as completely as possible the food supply of the mature weevils and the breeding places of the immature weevils.