. Insects affecting vegetables [microform]. Légumes; Vegetables; Insect pests; Insectes nuisibles. -11 , if 12 After the cutting season is over the plants should from time time be sprayed with one of the arsenical poisons, but when the se caj)sules are formed this will be of no avail against the grubs of the i spotted species. To get rid of it, the seed bearing plants should 1 cut off and burnt. In early autumn it will be well to cut down and bu the whole of the plants. Beans. The Bean Weevil (Bruchus obtectus). This insect has only oe< reported from a few places in Ontario and Quebec, and
. Insects affecting vegetables [microform]. Légumes; Vegetables; Insect pests; Insectes nuisibles. -11 , if 12 After the cutting season is over the plants should from time time be sprayed with one of the arsenical poisons, but when the se caj)sules are formed this will be of no avail against the grubs of the i spotted species. To get rid of it, the seed bearing plants should 1 cut off and burnt. In early autumn it will be well to cut down and bu the whole of the plants. Beans. The Bean Weevil (Bruchus obtectus). This insect has only oe< reported from a few places in Ontario and Quebec, and does not apoei to have become established as a pest. It is a very small beetle, on tenth of an inch long, only half the size of the Pea-weevil, which i other respects It closely resembles. It is grayish brown in color, di to a coating of dense fine hair; the wing^iovers are marked with a seri. of Unes running lengthwise and have a mottled appearance The beet IS oval in shape, the head is bent down and terminates in a short squai beak; the end of the abdomen is not covered by the wings, and diffei trom that of the Pea-weevil in being destitute of the two oval blac spots which are characteristic of the Fig. 22. Bean Weevil much enlarged and natural size; infeeted beim. The eggs of the insect are laid upon the young bean pods; thi grubs, as soon as they are hatched, bore through and enter the bean inside, several making their way into a single bean. Maturity is reache* m the autumn, when the beetles emerge if the season is warm; otherwis( they remain all winter in the ripened bean. If unmolested they wil increase and multiply in the dry seeds and continue their work of destruc tion for a long time. It is therefore useless to hold over the seed for i year, as may be done to get rid of the Pea-weevil. Remedy: Whenever this insect is found to be present, the beans should be fumigated as soon as practicable after they are harvested This IS done by putting them in a barrel or
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