. The Hessian fly in Ontario [microform]. Flies; Hessian flies; Mouches; Insect pests; Mouche de Hesse; Insectes nuisibles. ii. r Vig. Kiiiwlmui. »||yni|, mm\« («rter Riley). Kuprlmiu .llynH, «l« (from Ril,.y), .u« Sr*''"^ !â¢'«â¢"â¢â¢ pwMlt*. may b« in liniUnc the nanben ol the Hm- â an Fly, .nd boweTer tfieotiTe and iwfal they ney be where other preven- urn ate nfflretfd. thfv can never take the place of aotlve niMaoreo if petff ot inmiiBity ia dfiircd. A proniitcnt authority atatci that " bat for ita n»toral eteniM the Hcuian Fly woald render it impoMible to
. The Hessian fly in Ontario [microform]. Flies; Hessian flies; Mouches; Insect pests; Mouche de Hesse; Insectes nuisibles. ii. r Vig. Kiiiwlmui. »||yni|, mm\« («rter Riley). Kuprlmiu .llynH, «l« (from Ril,.y), .u« Sr*''"^ !â¢'«â¢"â¢â¢ pwMlt*. may b« in liniUnc the nanben ol the Hm- â an Fly, .nd boweTer tfieotiTe and iwfal they ney be where other preven- urn ate nfflretfd. thfv can never take the place of aotlve niMaoreo if petff ot inmiiBity ia dfiircd. A proniitcnt authority atatci that " bat for ita n»toral eteniM the Hcuian Fly woald render it impoMible to grow wheat â¢ucc«,fnlly in many aeotiona of the United ; * Inrictb Homitimu Mutakkn roB thb BiasuN Flv. The following inMota are frequently miataken for the Heaaian Fly: American Frit Fly {Oicinit carbonaria). Wheat Stem Maggot or Wheat Balb- Worm {Mtromyta Americatia) (Fig. 8), and Wheat Midge {Diplotii trUiei) (Fig. 9). Al- though theae are quite unlike X in appearance, yet many wheat growera are anable to identify them with any degree of eer- taintj. In order (hat corre> pendente may be the better able to nr-ne the common wheat peata, a table of char- acteristic differenoea between the forma, sotiicient for iden- tification purposes, is here given. am much indebted for tb chief characteriatioa of thv. formd described to Vi,. ,s Whm bulb-wonn( American.): p,!,,;;'!"*"^. '?|'°'V °^ ^r. Hy: b, larva ; c, puiiariun.: d, infented wheat '^'«*onefi Of the Dominion Ex-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864-1927; Ontario Agricultural College. Toronto : Dept. of Agriculture
Size: 2457px × 1017px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1901
