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Lethbridge Herald Newspaper Archives

- Page 69

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Lethbridge Herald, The (Newspaper) - May 16, 1972, Lethbridge, Alberta False Tufscioy, May 16, 1972 THE LETHBRIDGE HERALD _ 27 bug By DR. G. E. SWAILES Research Station In 1971, the false chinch bug caused some damage and much concern when it appear- ed on seedling rape crops in a few fields near Lethbridge. The invading insects moved from adjacent rape stubble. This previous crop had pro- vided food in the fall and good protection through the winter. A similar situation may exist this year in southern Alberta. Emerging rape scedl ings should be watched carefully for signs of damage and the presence of the bugs. The false chinch bug feeds by sucking juice from the leaves, stems, or pods. It leaves a small, rusty, feeding scar surrounded by a yellow necro- tic area. Seedlings with many punctures in the stem collapse and soon dry out, es- pecially in hot, windy weather. Only the underground portions of the stem and the roots can (hen be found. In a dense stand the yield could be reduced. The bug causing the damage Is a little over one-eighth inch long and uniformly light gray when mature. It overwinters as an adult in debris. In the spring it searches out host plant seedlings and will feed on many species of plants. It lays its eggs on the plants and soil. These hatch into small bugs similar lo (he adults but without wings. There appears lo be at least two and possibly more generations a year in Al- berta. The false cliinch bug lias been known to damage many crops. In the United States, in the twenties and thirties it was recorded from such diverse crops as potatoes, corn, rasp- berries, alfalfa, and grapes but had a decided preference for plants of Uie mustard family. Most damage occurred when the insect moved from weed hosts after cultivation. It has occurred in Alberta periodical- ly for many years. In Ihc spring of 1971 we were able to screen several insecti- cides in the laboratory. Mala- thion and trichlorfon both gave control when applied at 2 to 4 ounces per acre. However, these insecticides should only be used if there is definite evidence of seedling loss. A more advisable method for control would be to avoid seed- ing crops where the hug is pre- valent. Rape should not be seeded into rape stubble or an adjoining field if an infesta- tion had occurred the, previous year. Fields where crop resi- due was heavy and provided ample winter protecl ion also should be avoided. Fallow land to be seeded to rape should be kept clean of weeds, espec- ially mustards, on wliich the bugs may increase in numbers. FARMER HOLIDAY Norway recently put into ef- fect a novel measure of social legislation providing a vacation plan for farmers and fishermen. Each farmer and fisherman will be paid an amount of money for vacation purposes, the amount to be determined, in the rase of farmers, according to (he total agricultural income of the farm. TJw plan is designed to cover the farmer and his wife. SIMPSONS-SEARS RUGGED AND DEPENDABLE CRAFTSMAN POWER TOOLS Either tool: 34.88 Variable Speed Drill. Has bearings al heaviest wear points for oxlra oncraline h-Cra ft Dual-action Sander. Shifts from orbital 1o straight -line sanding by simply tnrnine a key. Rig pad extends beyond sender fides for handling comers. Polished aluminum Louiioe. Reg. 49.98 Either tool: 54.88 7" Circular Saw. Rugged Ionp life construction. Heat resistant armature wire and ami- Jiic.kback safely clutch help prevent burnout. Chisel- tooth Kroineilgc blade stays sharp 5 times, longer ihan ordinary blades. Keg. 74.98 Router. Cuts, fliapes. routs, grooves and mortises wood or plastic'. Cuts up to 1 deep, graduated in 32uils of an inch, Guar.'W- Iced for 1 -year. Reg 74.98 Save Saw mgh speed for quick-sanding. Excellent for nuto-body T d M s'I49'98 lli4.99 Jv-Craftsman 4" Bell Sander. Large 4 x 21' belt tl.Jnlf of all tlic things vou can mate with ibis liZmflowsne ilTP6IlIat II only n mou and Ion speeds. Keg. 24.98 but can also be used mitre cuts and bevels Impart. Ideal auto over- in itself. So baul, tire rotation, muffler removal or build! g i t it Z' CM Jt to tenanec work. Can also drill wood, or inasonry r, nk A e! huv 1 your Ci'r removes nuts, bolls and screws. Reg 124.98 tlih S pnCC a' Quality Costs No More At Simpsons-Sears STORE HOURS: Open Dally 9 a.m. fa p.m. Thunday and Friday 9 a.m. to 9 pm. Centre Village Telephone 328-9237 ;