Studies were carried out in Morelos State, Mexico, to develop a pest management programme for Boophilus microplus (Can.) taking into account climatic factors, the breeds of cattle and management techniques. It was found that on crosses between native cattle and Brahman cattle, 80% of the ticks...

A " popular " account of the incidence of insect pests during 1941-42 in Montana. Most of the records are concerned with plant pests, but two animal pests are reported: the screw-worm (Cochliomyia americana[Cochliomyia hominivorax]) is recorded for the first time in the state, and the spinöse...

" Boophilus australis (cattle tick) may affect the health of cattle in two distinct ways, namely by conveying tick fever and by the irritation, etc., caused by its presence. This fact of the tick being capable of giving rise to sickness per se by gross infestation, has not always been recognised,...

ARIZONA, 1942-43.-A 75% reduction in WARBLE FLY INFESTATION in cattle was achieved by the application by power spray of a mixture of 10 lb. derris root (5% rotenone) with 100 lb. fine sulphur in 1, 000 gal. water. Lice were also successfully eliminated.
COLORADO, 1942-43.-LISTERIASIS was diagnosed...

ARIZONA, 1939-4.-Short notes are given on (1) negative bacteriological research into INFECTUOUS-KERATITIS in range cattle, (2) calf losses and their prevention by more skilful management, (3) control of ox-warble flies by derris, and (4) the breeding of strains of fowls resistant to FOWL PARALYSIS. ...