116 REPORT OF No. 19 



Kerosese Emulsion. — Kerosene Emulsion was also tried, and this proved 

 of more value than the Whale-oil Soap Emulsion, but not so effective as the 

 lime, salt and sulphur wash. 



Lime. Quick slaked lime, 1^ lbs. to 1 gallon of water, proved very 

 effective applied as a winter wash, and equalled the results obtained by the 

 lime, salt and sulphur. 



Kerosene-Lime. — This was also tried, but did not prove superior to the 

 Kerosene Emulsion, and therefore is not to be preferred to it. 



The lime-sulphur sprays must not be applied while the trees are in fo- 

 liage, first, because of the disastrous results that follow when this is done 

 before the leaves have matured ; and secondly, becaue of the difl&culty in mak- 

 ing a thorough treatment at such a time. The month of March and the 

 earJy part of April, before the buds commence to open, is a good time to 

 spray with these mixtures. 



THE BEAN WEEVIL (Bruchus obtectus, Say). 



Py AKiiirR Gibson, Assistant Entomologist, Central Experimental 



Farm, Ottaw^a, 



An insiect which, fortunately, has only been reported on a few occasions 

 as doing damage in Canada, is the Bean Weevil, Bruchus obtectus, Say. 

 Authentic instances of injury by this insect have been received from one 

 locality in Ontario, and from two in Quebec. The injury in all cases was 

 to seed beans. 



The Bean Weevil (Fig. 36) is a small, hard-shelled beetle, one-tenth 

 of an inch long, oval in form, with the head bent down and more or less 

 concealed, as seen from above, and prolonged into a squarely-cut snout, or 

 beak. Its antennae are distinctly jointed and enlarged at the tip, the first 

 four joints and the last one reddish. The wing-covers are marked with ten 

 impressed and dotted longitudinal lines, and the whole body is covered with 

 long, silky hairs. The lines on the wing covers are broken up into pale yel- 



FiQ. 36— The Bean Weevil. 



lowish dashes and dark brown spots. The tip of the abdomen extends be- 

 yond the wing-covers, and is of the same reddish tinge as the tips of the 

 antennae and the legs, but is covered more or less with short, silky hairs, 

 and bears a central white line, but there is no appearance of the two black 

 spots so conspicuous in the Pea Weevil, which it resembles in shape and 

 movements. Compared more closely with this latter well-known inect, the 

 Bean Weevil is not one-half so large, is more soberly colored, having less 

 white on the wing-covers, and lacks the white spot on the middle of the 



