000 03287nam  2200481zi 4500
0019.935619
003CaOODSP
00520240319151411
006m     o  d f      
007cr mn|||||||||
008240319e197705  onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-on
045 |ax7x7
0861 |aFo64-37/144-1977E-PDF
1001 |aMorris, O. N. |q(Oswald Nathaniel), |d1926- |eauthor.
24510|aAerial field trials with a new formulation of Bacillus thuringiensis acainst the spruce budworm, Choristoneura fumiferana (Clem.) / |cby O.N. Morris, J.A. Armstrong and M.J. Hildebrand.
264 1|aOttawa, Ontario : |bChemical Control Research Institute, |cMay 1977.
300 |a1 online resource (i, 23 pages, 15 unnumbered pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aInformation report, |x0704-7711 ; |vCC-X-144
500 |aISSN of series supplied from ISSN Portal.
500 |a"May, 1976."
500 |a"May 1977"--Cover.
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (page 7).
5203 |a"Mixtures of Dipel 36B, a highly concentrated commercial formulation of Bacillus thuringiensis (B.t.) and acephate (Orthene®) (O,S-dimethylphosphoramidothioate), an organophosphate insecticide, were applied by aircraft onto 20 to 30-hectare blocks of white spruce Picea glauca (Moench) and balsam fir (Abies balsamea (L.)) trees infested with spruce budworm, Choristoneura fumiferana (Clem). The formulation contained carboxymethylcellulose (CMC), polyvinylpyrrolidone (PVP) and a sunlight screen, Uvinul DS49. Dosage rate applied was 30 Billion International Units of B.t. with and without 42 g AI of acephate in 9.4 ℓ/hectare. Drop density was generally high with one plot receiving 88 drops/cm² at ground level. In spite of this, efficacy of the treatments in terms of population reduction and foliage protection was low, due most likely to the presence of PVP in the fonmlation and to tin-usually high natural budworm mortality. The treatments had no immediate deleterious effect on the spruce budworm parasite complex"--Abstract, page i.
546 |aIncludes abstracts in English and French.
650 0|aBacillus thuringiensis|zOntario|xTesting.
650 0|aAcephate|zOntario|xTesting.
650 0|aSpruce budworm|xBiological control|zOntario.
650 0|aSpruce budworm|xControl|zOntario.
650 0|aAerial spraying and dusting in forestry|zOntario.
650 6|aBacillus thuringiensis|zOntario|xEssais.
650 6|aAcéphate|zOntario|xEssais.
650 6|aTordeuse des bourgeons de l'épinette|xLutte biologique contre|zOntario.
650 6|aTordeuse des bourgeons de l'épinette|xLutte contre|zOntario.
650 6|aPulvérisation et poudrage aériens en sylviculture|zOntario.
7102 |aChemical Control Research Institute (Canada), |eissuing body.
830#0|aReport (Chemical Control Research Institute (Canada))|vCC-X-144.|w(CaOODSP)9.931023
85640|qPDF|s2.54 MB|uhttps://publications.gc.ca/collections/collection_2024/eccc/fo64/Fo64-37-144-1977-eng.pdf