FUMIGATION FOR WEEVILS.

New Zealand Mail, Issue 1696, 31 August 1904, Page 74

FUMIGATION FOR WEEVILS.

The Ontario Agricultural College gives the following mode of dealing with pea weevils:—'“lmmediately after thrashing tlie peas were put into cotton or jute bags. As soon as 30 bushels of peas were thrashed they were placed in a fumiga-

tion box for treatment (fig. 1). One pound of carbon bisulphide was poured out into three flat pans, which were placed on tlie top of the peas; the cover was then put on the box and weighted with heavy stones. After 48 hours the cover was removed and the box ventilated. The pans had become dry, as the liquid had changed into a gas, which, being

FIG. 2. much heavier than air, had sunk down amongst the peas, penetrating them and killing the weevils. The quantity of than that usually recommended, as a pound or a pound and half is generally considered sufficient iffr 100 bushels of peas, but we wished to err on the safe sida.” At figs. 2 and 3 is shown how barrels may be used for fumigating if desired. The box is sft. long by 2 4-sft. broad and 3ft. deep, and will hold 30 bushels

FIG. 3. of peas at a time. It is made of pine lumber ltin. thick, tonguod and grooved. The end pieces are morticed into the sides. The gas or vapour which comes from carbon bisulphide is not only combustible, but very explosive, when mixed with air. C'are should be taken to use it during the daytime only. The treatment with carbon bisulphide should bo made in boxes, barrels, or “bug houses/’’ located some distance from the insured buildings on the farm. With the strict observation of the preceding precautions, no one should hesitate to use the carbon bisulphide.