Page 16 Advertisements Column 2

Press, Volume XCV, Issue 28251, 12 April 1957, Page 16

FARM FORUM Questions and answers by experts for the man on the land. K ■■■■■■■■■■■■■ ■.. M: ’ ■ > , ■■ < Z.' ! ',A Pasture lands showing good use of trees as cover. Cover for paddocks My farm has only single rows of pines for cover. They are over 50 years old and do not serve their purpose very well. I have wanted macrocarpa hedges but . have heard that they are prone to a virus disease. Is there any remedy for this? A: Have you thought of using Cupressus Lawsoniana. If the land is not wet and these trees are well fenced to protect them from stock, they provide excellent shelter. Feeding fresh chou Is it a myth or is it true that cows should not eat freshly picked chou ? A: Generally it may be accepted as a myth, but the conditions prevailing are the governing factors if trouble occurs. Many farmers break-feed their crops of chou with an electric fence but they would see that the chou was not frosted, or that the cows did not receive excessive amounts at a time. A little hay fed prior to eating chou, or saved grass would be an advantage. Couch Grass «'• I doubt if sheep touch couch grass and cows only nibble it when they’re hungry. How can I get rid of it when it’s only taking minerals out of the soil? A: If an area cannot be cultivated, an initial dressing of 40-50 lbs. of T.C.A. should be made, followed by a repeat dressing to kill runaway regrowths. Wonder insecticides I always see the names of the Shell insecticides, “aldrin” and “dieldrin” used together. Sometimes both are recommended for the same type of pest control. What’s the difference? aldrin is the more volatile of the two and is therefore the least persistent on foliage although it retains its effectiveness just about as long as dieldrin when used against soil insects. Aldrin is also cheaper than dieldrin. In general, therefore, aldrin-based products should be used (a) when the pest to be controlled is equally susceptible to both aldrin and dieldrin at similar dosage rates; and (b) when a persistent insecticide is undesirable, such as for the treatment of food crops shortly before harvest. ; dieldrin, which is made from aldrin, is the more expensive ot the two chemicals. However, when applied to foliage, it persists up to two months, or from two to four times as long as aldrin. Fewer applications and lower dosage rates may thus make dieldrin less expensive in the long run, where persistence is no disadvantage. C A "Farm Forum” is another Shell service to farmers. If you have any queries, address them to “Farm Forum", Box 2091. Wellington and watch for the answers in this columa. *