. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. THE AGRICULTUEAL NEWS. The Life History OF The Cattle Tick. Th© fmpo /tance of accurate tnowledge on this subject lies in the fact that, before methods of eradication can be carried out Intelligently and success- fully, it is necessary to kiidw the life history of the tick, and the intluence ot tenijierature, moisture, and other climatic conditions on the various stages of its existence. In the lolluwiag notes, whenever the term "tick" vr "cattle lirk' is used it refers to the one species, Margaropus
. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. THE AGRICULTUEAL NEWS. The Life History OF The Cattle Tick. Th© fmpo /tance of accurate tnowledge on this subject lies in the fact that, before methods of eradication can be carried out Intelligently and success- fully, it is necessary to kiidw the life history of the tick, and the intluence ot tenijierature, moisture, and other climatic conditions on the various stages of its existence. In the lolluwiag notes, whenever the term "tick" vr "cattle lirk' is used it refers to the one species, Margaropus anwuXatus, the oommon Cattle Tick, which is so prevalent throughout the West Indies. Only 'A part of the development of the tick takes place on the animal host: the rest of the development occurs on the pasture occupied by the host. DEVELOPMENT on the GROUND X'HE ENGORGED FEMALE. In tracing the life histor>' of the cjittle tick it will be convenient to begin wit*o the large, plump, olive-green female tick, about half an inch m length, attached to the skin of the host. During tlie lust few days ^ent on the host, she has increased enormously in size, as a consequence of drawing a large supply of blood. When fully engorged she drops to the ground, and .it once, especially if the weather is warm, begins to search for a hiding place on moist earth beneath leaves; or any other litter which may serve as a protection Irom the sun and numerous enemies, or shield her from unfavourable conditions. The female tick may be devoured by birds, or destroyed by iints. or may perish as a result ot" unfavourable conditions, such ns low temporaTnre. absence or excess of moisture, and other conditions ; so that many female ticks which fall to the ground are destroyed t>efore they lay eggs. EGG LAYING. Egg laying begins during the spring, summer and fall months in from 2 to 20 days. ;md during the winter months in from 13 to 98 (lays. ;ifter falling to the ground. The eggs are smal
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Keywords: ., bookauthorgreatbritainimperiald, bookcentury1900, bookdecade1900
