Circonstances épidémiologiques semblant favoriser le développement des mycoses a entomophthorales chez trois aphides,Aphis fabae Scop.,Capitophorus horni Bôrner Et myzus persicae (Sulz.)

Entomophaga ◽  
1970 ◽  
Vol 15 (2) ◽  
pp. 169-190 ◽  
Author(s):  
J. Missonnier ◽  
Y. Robert ◽  
Geneviève Thoizon
Keyword(s):  
Myzus Persicae ◽  
Aphis Fabae

Динамика численности и видовой состав тлей на посадках семенного картофеля в Ленинградской области

2020 ◽  
pp. 3-7
Author(s):  
Тамара Алексеевна Шелабина ◽  
Марина Николаевна Берим
Keyword(s):  
Myzus Persicae ◽  
Aphis Fabae ◽  
Aphis Nasturtii

Существенным элементом в комплексе специальных и агротехнических приемов, направленных на ограничение распространения вирусной инфекции, является мониторинг численности, динамики и видового состава тлей, мигрирующих в посадках оригинального картофеля. Двухлетний мониторинг (2016 – 2017 гг.) на опытных полях Гатчинского района Ленинградской области проведен с использованием желтых водных ловушек Мёрике. Изучены количество тлей, сроки их миграции на посадки картофеля, сроки наступления пика численности. Наибольшее влияние на насекомых оказывала среднесуточная температура воздуха. За сезон наблюдений отловлено: в 2016 г. — 481 крылатая особь 31 вида, в 2017 г. — 131 особь 30 видов. Доля возможных переносчиков вирусов картофеля от общего числа зарегистрированных крылатых тлей составила в 2016 г. 14,8 %, в 2017 г. — 32,8 %. Оценка скрытой зараженности вирусной инфекцией (MBK, YBK вирусы) методом ИФА в 2015 – 2017 гг. показала, что на растениях картофеля сорта Ломоносовский скрытая зараженность составила 2,6 – 7,3 %, сорта Чародей — 1,9 – 13,3 %, сорта Невский — 0,8 – 10,5 %, сорта Романо — 4,1 – 9 %. Из известных переносчиков вирусов картофеля в оба года в энтомологических сборах с сосудов отмечены Aphis nasturtii — 6 – 12,2 %, Aphis fabae — 7,2 – 4,6 % от общего числа отловленных; Myzus persicae (13 %) в составе мигрирующей генерации тлей отмечены только в дождливом и прохладном 2017 г. В прогностических целях желательно пользоваться в регионе также данными со всасывающей ловушки, поскольку появление в ней насекомых отмечено на 10 – 12 дней раньше, чем на полях.

Aphids caught on sticky traps in eastern England in relation to the spread of yellowing viruses of sugar-beet

1974 ◽  
Vol 64 (4) ◽  
pp. 669-676 ◽  
Author(s):  
G. D. Heathcote
Keyword(s):  
Sugar Beet ◽  
Myzus Persicae ◽  
Annual Incidence ◽  
Aphis Fabae ◽  
General Increase ◽  
Sticky Traps ◽  
Linear Regressions

AbstractLong-term records of aphid catches on two sticky traps, one at Rothamsted (1942–64) and one at Broom's Barn (1960–64) are extended to 1973 and are supplemented by data from up to 12 sticky traps in sugar-beet crops in eastern England (1960–73). The incidence of yellowing viruses of sugar-beet between 1965 and 1973 showed no relation to aphid numbers, but between 1942 and 1973 the pattern of annual incidence was similar to that of numbers of Myzus persicae (Sulz.) trapped in May and June. Linear regressions of the incidence of yellowing viruses on numbers of M. persicae in May and June accounted for 28–57% of the variance, and on Aphis fabae group for 2–40% of the variance. It is concluded that sticky traps provide useful information for advisory entomologists and that there has been no general increase in aphid numbers over the last 30 years.

Observations on the settling behaviour of aphids on sugar–beet plants in the glasshouse

1966 ◽  
Vol 67 (3) ◽  
pp. 405-410 ◽  
Author(s):  
G. E. Russell
Keyword(s):  
Sugar Beet ◽  
Myzus Persicae ◽  
Aphis Fabae ◽  
Settling Behaviour

1. In glasshouse experiments, apterous and alate Myzus persicae Sulz. and Aphis fabae Scop, settled more readily on some sugar-beet plants than on others.

A new systemic Insecticide bis (bis dimethylamino phosphonous) anhydride

1950 ◽  
Vol 40 (4) ◽  
pp. 481-501 ◽  
Author(s):  
W. E. Ripper ◽  
R. M. Greenslade ◽  
G. S. Hartley
Keyword(s):  
Myzus Persicae ◽  
Field Experiments ◽  
Physiological Condition ◽  
Organic Phosphorus ◽  
Aphid Species ◽  
The Other ◽  
Aphis Fabae ◽  
Systemic Insecticide ◽  
Mealy Bug ◽  
Selective Insecticide

Bis(bis dimethylamino phosphonous)anhydride is shown to be a systemic insecticide when sprayed on the leaves of numerous plants. The translation of it from one part of the plant to another, over distances varying from the thickness of a leaf to three feet, was shown with Aphis fabae, Myzus persicae, Brevicoryne brassicae, Macrosiphoniella sanborni and Pseudococcus citri.Plants treated with it are shown to be toxic to 14 Aphid species, one Aleurodid, one mealy-bug, two Jassids and two species of red spider.It is not found to be toxic to non-plant-sucking insects, notably predators and parasites. It is, therefore, a selective insecticide for the control of Aphids, and field experiments have shown that treatment with it gives plants prolonged toxicity to Aphids and allows the parasites and predators to keep in check any survivors or newly arrived individuals.Non-selective organic phosphorus insecticides such as Parathion, Paraoxon and HETP give a high mortality, but the Aphid population builds up again very rapidly after treatment with them, leading, in many cases, to a heavier infestation than before.Plants treated with bis(bis dimethylamino phosphonous)anhydride, on the other hand, keep free from Aphids for prolonged periods (2 to 5 weeks depending on the species of Aphid, the stage of growth of the plant and its physiological condition).

Aphid (Hemiptera: Aphididae) populations and the incidence of virus yellows on insecticide-free sugarbeet in south-eastern England in 1978-81

1987 ◽  
Vol 77 (4) ◽  
pp. 617-628 ◽  
Author(s):  
W. A. Thornhill ◽  
G. D. Heathcote
Keyword(s):  
Myzus Persicae ◽  
Annual Variation ◽  
Aphid Species ◽  
The Other ◽  
Aphis Fabae ◽  
Macrosiphum Euphorbiae ◽  
South Eastern ◽  
Winter Temperatures ◽  
Syrphid Larvae ◽  
Aphid Populations

AbstractThe populations of the most common aphid species on sugarbeet, and their principal predators, were monitored on insecticide-free study areas of the crop in south-eastern England in 1978–81. The peak populations of Myzus persicae (Sulzer) varied considerably in size from year to year and were related to the severity of the previous winter. Those of Aphis fabae fabae Scopoli, which occurred slightly later in the season, also varied greatly in size but were not strongly linked to winter temperatures. The sizes of the peak populations of Macrosiphum euphorbiae (Thomas) were similar each year. The annual variation in the level of infection by virus yellows reflected the peak populations of Myzus persicae and not those of the other aphid species. Coccinellids first appeared in the sugarbeet each year in mid-late June, as the aphid populations were developing, and their peak populations did not vary greatly from year to year. Syrphid larvae appeared later in the season than coccinellids, and their numbers seemed closely linked to those of A. f. fabae. Anystid mites were observed on most count dates in all years. The implications of the findings of the study for control of aphids and virus yellows are discussed.

scholarly journals Plum Pox in North America: Identification of Aphid Vectors and a Potential Role for Fruit in Virus Spread

2004 ◽  
Vol 94 (8) ◽  
pp. 868-874 ◽  
Author(s):  
Frederick Gildow ◽  
Vern Damsteegt ◽  
Andrew Stone ◽  
William Schneider ◽  
Douglas Luster ◽  
...  
Keyword(s):  
Myzus Persicae ◽  
Acyrthosiphon Pisum ◽  
Rhopalosiphum Padi ◽  
Aphid Species ◽  
Aphis Fabae ◽  
Macrosiphum Euphorbiae ◽  
Plum Pox Virus ◽  
Long Distance ◽  
Metopolophium Dirhodum ◽  
Aphid Vectors

Thirteen aphid species were tested for their ability to transmit Pennsylvania isolates of Plum pox virus (PPV) collected in Columbia (PENN-3), Franklin (PENN-4), and York (PENN-7) Counties, PA. Four species, Aphis fabae, A. spiraecola, Brachycaudus persicae, and Myzus persicae, consistently transmitted PPV in preliminary transmission tests. Two species, Metopolophium dirhodum and Rhopalosiphum padi, were occasional inefficient vectors. Toxoptera citricida, from Florida, also was an effective vector but it does not occur in major stone-fruit-growing states. Species not transmitting PPV in parallel tests included Acyrthosiphon pisum, Aphis glycines, Aulacorthum solani, Macrosiphum euphorbiae, Rhopalosiphum maidis, and Sitobion avenae. When given a 3-day probing access period simultaneously on PPV-infected peach seedlings and healthy peach seedlings, Myzus persicae, Aphis spiraecola, A. fabae, and B. persicae transmitted PPV to 63, 31, 38, and 32% of the healthy peach seedlings, respectively. When given a similar probing period on PPV-infected peach fruit and healthy peach seedlings, the same aphid species transmitted PPV to 50, 35, 0, and 0% of seedlings, respectively. Results support the hypothesis of secondary PPV spread by indigenous aphids in Pennsylvania, and suggest that PPV-infected fruit has the potential to function as a virus source for long-distance dispersal.

Sign in / Sign up

Export Citation Format

Share Document