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Adults of Altica (Haltica) carduorum Guer. from France were released in 1969 and 1970 on Cirsium arvense (creeping thistle) at Silwood Park, Berkshire...
Read moreIn the work described in this second part [cf. preceding abstract], first-instar larvae of Sericesthis nigrolineata (Boisd.) were exposed, for various...
Read moreIn tests in Australia, first and second-instar larvae of Sericesthis nigrolineata (Boisd.) were exposed for short periods to temperatures between 30 a...
Read moreSee also W.A. 21, 1371. The interference between wheat and 3 edaphic ecotypes of Cynodon dactylon (naturally occurring at Chandigarh, Shiwalik and Mal...
Read moreBarley, Sinapis alba and Papaver rhoeas, and then barley, S. alba and Avena fatua were grown in pure stand and in mixtures of 2 and 3 species at diffe...
Read moreThe effect of copper sulphate as an algicide is reviewed briefly. In experiments in which Anabaena flos-aquae and Scenedesmus quadricauda were exposed...
Read moreSee also W.A. 20, 2439 and 2892. Experimental simulation of the theoretical effects of ploughing, both to different depths, and at different times of ...
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