. Insects affecting vegetables [microform]. Légumes; Vegetables; Insect pests; Insectes nuisibles. below the -Win of the A .ubwqucnt rottioK "f the tuber. «â ttjlZ' *»;^*' 'L""" ^;^""''"y ""PP"^"* '" »'«^ due to the .pread !« f!.^-i Pr.'^""^«" the lower .urface of tY, »ed .pot. Thi'e hecomc. .pread over an entire field. Sc far a, U known the^ueT^. Fig. 64. Late Blight, a, Hyphae protruded through a breathinif-Dore of and bearing sfwre* ; b, a spore ( germinating^ ^ a m "r
. Insects affecting vegetables [microform]. Légumes; Vegetables; Insect pests; Insectes nuisibles. below the -Win of the A .ubwqucnt rottioK "f the tuber. «â ttjlZ' *»;^*' 'L""" ^;^""''"y ""PP"^"* '" »'«^ due to the .pread !« f!.^-i Pr.'^""^«" the lower .urface of tY, »ed .pot. Thi'e hecomc. .pread over an entire field. Sc far a, U known the^ueT^. Fig. 64. Late Blight, a, Hyphae protruded through a breathinif-Dore of and bearing sfwre* ; b, a spore ( germinating^ ^ a m "re-cZ fcl\v«""'"> '^'^ '^"'â¢'"â¦Â« °f *»>'-* l-ave divided up^'o forma n^mte? of active iwimmmg sporeB (zoospores) ; ,{, a loosWjre with itH two whipa ; e, the aame after withdrawing the whip,; /, tCsame gemin^t" l^f^'^U'f. r" ^^. *'"**â â °"'y ^^ **>« f""ff"s threads within the attacked tubers. Thus the source of new infection is supposed to be from stored potatoes used for seed and from old tubers left on the i.°"u ; ^ u ^ * '* "^ ^"PPO^^'^ t*^"* a new crop of spores is produced which hnd their way on to the potato leaves. prouutxa, nn^ r***?u"*'. ^P'^y '^'*'' Bordeaux. Be^in spraying about July loth. and keep the vines covered with Bordeaux until danger of inf Jtion is 4 Boll. 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 Bethune, Charles J. S. (Charles James Stewart), 1838-1932; Ontario. Dept. of Agriculture. Toronto : Dept. of Agriculture
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Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectinsectpests
