Results 81 to 90 of about 762 (203)
Revista de Biología Tropical, 2008 The functional response of the phytoseiid predator Chileseius camposi González y Schuster, 1962 (Acarina:Phytoseiidae) on densities of its prey Panonychus ulmi (Koch, 1836) was evaluated under controlled temperature (20 ± 2 ºC),, relative humidity (75 ...
Francisco Sepúlveda, Roberto Carrillo
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, 2016 International audienceA survey of Panonychus species was undertaken across Georgia from 2005 to 2014 on various host plants, revealing three species: Panonychus citri (McGregor, 1916), Panonychus hadzhibejliae (Reck, 1947) and Panonychus ulmi (Koch, 1836)
Arabuli, Tea, Auger, Philippe, P.
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Les déséquilibres biologiques provoqués par les traitements pesticides de la plante
OENO One, 2016 L'influence qu'exercent les pesticides sur la physiologie et la biochimie des végétaux peut se répercuter sur les déprédateurs vivant aux dépens de ceux-ci.
F. CHABOUSSOU
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, 1960 The winter eggs of the phytophagous mite Panonychus ulmi (Koch) in Nova Scotia have been found to be killed by cold at the lower extremes of temperature. A more resistant form occurs in the colder areas of New Brunswick and Quebec.
MacPhee, A.W.
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Managing spider mites in almonds with pesticide-resistant predators
California Agriculture, 1984 Not available – first paragraph follows: During the past three years, we have investigated the use of pesticide-resistant strains of spider mite predator released into almond orchards as components of an integrated management program. This predatory mite,
M Hoy +5 more
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Resistance to acaricides by European red mite studied in Bartlett pear field plots
California Agriculture, 1960 The incidence of resistance to certain acaricides by the European red mite—Panonychus ulmi (Koch)—has increased severely during the past few seasons. The acaricides were organic phosphate compounds and such specific acaricides as Ovex and other closely ...
H Madsen, P Westigard
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The Population-prevalence of Panonychus ulmi KOCH Affected by Some New Acaricides in an Orchard
Japanese journal of applied entomology and zoology, 1958 1) 北海道農業試験場果樹園で5本の紅丸を選び,各木をそれぞれ無散布,機械油,DDT, BHC,パラチオン区とし,これら薬剤のリンゴハダニの発生消長に及ぼす影響を調査した。2) 使用薬剤はマシンゾール80% 20倍,BHC水和剤15% 150倍,DDT水和剤20% 600倍,パラチオン乳剤3000倍である。マシンゾールは4月12日,他の薬剤は6月20日に散布したが,各薬剤の散布回数はすべて1回である。3) DDT区では6月下旬から8月上旬にかけて著しいハダニの増殖が観察され,無処理区の発生がこれに次いだ。他の3区の発生量は6∼7月はむしろ少なく,かえって8月中・下旬に顕著な増加を示し,また次年度の寄生源たる越冬卵数もこれらの区に多かった。4) コクロヒメテントウその他の天敵をもあわせて調査したが ...
NISHIO, Yoshiaki, IMABAYASHI, Shun-ichi
openaire +2 more sources
Controlo biológico do Panonychus ulmi (Koch) com recurso ao biopesticida “TecBom” [PDF]
, 2019 Panonychus ulmi (Koch) é um ácaro causador de prejuízos em pomóideas, em Portugal e por todo o mundo. O presente trabalho tem como objetivo a avaliação de um biopesticida, “TecBom”, com constituição base em oleínas vegetais saponificadas, produto de ...
Santos, Bernardo Alves dos
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, 1999 The European red mite (Panonychus ulmi Koch) has attained serious pest status of apple for last 3-4 years in J&K State, resulting in heavy losses in fruit yield and vigour of the plant. Indiscriminate use of various pesticides in apple orchard ecosystem
Wani, Nazir Ahmad (Scholar)
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Effect of weather on the abundance of winter eggs of the European red spider mite on apple
Agricultural and Food Science, 1992 Winter eggs of the European red spider mite Panonychus ulmi were counted on apple twig samples (N = 279) collected in south-western Finland in the winters of 1984/85 through 1989/90.
Tuomo Tuovinen
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