FLEA BEETLE (_Phyllotrea striolata_, Fabr).--This insect, also known as the "ground flea" or "Jack," seldom attacks the plants except while growing in the open ground, and is most troublesome in warm, sheltered situations. A safe preventive, therefore, is to grow the plants in beds or frames elevated about three feet from the ground. The objection to this method, aside from the extra labor involved, is the necessity of almost daily attention to see that the soil does not dry out. A supply of water must be conveniently at hand if this method is used, and it is desirable also, to prevent the beds drying out too quickly, to have the earth at least eight inches deep. In hot-beds this insect is seldom troublesome, being probably repelled by the fumes from the manure used. When the seed is sown in the open ground, as practised by many large growers, an extra quantity should be used to ensure against almost certain loss of some of the plants by the flea beetle. The soil should be rich and fine, so that the plants will pass the critical stage as quickly as possible. Sowing radish seeds with the cauliflower is practised by some, as this seed costs but little, and the radishes, coming up first, are attacked by the fleas, which, to some extent, saves the cauliflowers. When the fleas appear, almost any kind of dust will keep them in check somewhat. Lime and ashes are used, but plaster, which adheres to the leaves better, seems equally good. I have had good success with rancid fish oil, mixed as thoroughly as possible with water and sprayed upon the plants. An emulsion made of the oil, in the same manner as hereafter described for kerosene, would enable it to be used to better advantage. A decoction of tobacco, or fine tobacco dust, are standard remedies for this insect.