EFFECT OF WEED CONTROL ON WEEDS. CEREAL APHIDS, NATURAL ENEMIES AND GRAIN YIELD OF WHEAT. | ||||
| Journal of Plant Production | ||||
| Article 9, Volume 31, Issue 8, August 2006, Page 4947-4956 PDF (129.11 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2006.236088 | ||||
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| Authors | ||||
| H. E. Megahed.1; M. F.l. Daiez2 | ||||
| 1Piercing and Sucking Insects Res. Dept.. Zagazig. Plant Prot... Res.. lnst.. ARC | ||||
| 2Weed Research Central Laboratory. ARC | ||||
| Abstract | ||||
| Two field experiments were conducted in sandy soil at lsmailia Agricultural Research Station during two successive winter seasons 2000101 and 2001102 to study the effect of some weed control treatments on the fresh weight of weeds (gImQ), grain yield of wheat (ardabffed.) and seek out herbicides lat-effects on cereal aphids and their natural enemies. All weed control treatments significantly reduced the fresh weight of weeds and increased wheat grain yield. Bromoxynil at the rate of 1.0 Ufed gave the highest reduction percentage in fresh weight of weeds by 94% & 93.2% and increased wheat grain yield by 78 3. 102.9% in the first and second season. respectively as compared with untreated check. From IPM point of view. hand weeding was suitable weed management. since they share in conserving natural enemies population. Clodinafop- propargyl at the rate of 140 gffed. as grassy weeds herbicide and bromoxynil as broad leaved weeds herbicide treatments being effective seemed acceptable where they owed little harm effects regarding suppression of natural enemies. hence they might be safety incorporated in lPM programs. | ||||
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