scholarly journals SEASONAL VARIATION OF THE GREEN BEANS APHID, APHIS CRACCIVORA KOCH AND ITS NATURAL ENEMIES ON THE GREEN BEANS PLANTS, PHASEOLUS VULGARIS L. AT MENOUFIA GOVERNORATE

2018 ◽  
Vol 3 (3) ◽  
pp. 93-98
Author(s):  
A.A. El- Dash ◽  
M.O. Kolaib ◽  
B.M. El- Defrawy ◽  
M. Hossiny
1953 ◽  
Vol 44 (4) ◽  
pp. 779-788 ◽  
Author(s):  
Bruce Johnson

The small, hooked epidermal hairs on french beans (Phaseolus vulgaris) may have a profoundly detrimental effect on colonies of Aphis craccivora. The hairs are present on the petioles, stems and undersurfaces of the leaves but are absent on the uppersurfaces of the leaves. They are most dense and therefore most injurious to the Aphids on the growing shoots. The Aphids' legs become impaled on the hooks and the results of the subsequent bleeding, starvation and exhaustion are decreased longevity and reproductive rate, high larval mortality, increased time of larval development and decreased size; this last factor is associated with a reduced fecundity. On some varieties of beans the hairs are less dense than on others and on these varieties the action of the hairs in inhibiting predators may be more important than their effect on the Aphids.


Food Control ◽  
2021 ◽  
Vol 124 ◽  
pp. 107936
Author(s):  
Zhi Qu ◽  
Zhongwei Tang ◽  
Fang Liu ◽  
Shyam S. Sablani ◽  
Carolyn F. Ross ◽  
...  

1976 ◽  
Vol 66 (2) ◽  
pp. 331-333 ◽  
Author(s):  
J. A. K. Farrell

AbstractIn two trials, at Chitedze, Malawi, in 1966–1967, the spread of rosette virus disease in groundnuts (Arachis hypogaea) intersown with field beans (Phaseolus vulgaris) was less than the spread in groundnut monocultures comprising plant populations equivalent to the number of groundnut plants and to the total number of plants in the intersown crop. In one trial, numbers of early rosette transmissions were related to numbers of alate Aphis craccivora Koch, the vector of the virus, found on groundnut plants. Immigrant alate A. craccivora settling on the intersown crop were trapped by the hooked epidermal hairs of the bean plants and the observed reduction of rosette infection in the intersown crop was attributed to this effect. Inter-sowing with beans is considered less effective than early-sown, high-density monoculture as a method of reducing groundnut rosette infections and yields of groundnuts from inter-sown crops may be lower than those obtained from high-density monoculture.


1995 ◽  
Vol 43 (9) ◽  
pp. 2480-2486 ◽  
Author(s):  
Trinette Stolle-Smits ◽  
Jan G. Beekhuizen ◽  
Cees van Dijk ◽  
Alfons G. J. Voragen ◽  
Kees Recourt

2018 ◽  
Vol 231 ◽  
pp. 15-21 ◽  
Author(s):  
Antonio Minnocci ◽  
Alessandra Francini ◽  
Stefania Romeo ◽  
Alfredo Daniele Sgrignuoli ◽  
Giovanni Povero ◽  
...  

1997 ◽  
Vol 30 (10) ◽  
pp. 787-791 ◽  
Author(s):  
Carlos De La Cruz-Garcı́a ◽  
Marı́a José González-Castro ◽  
Marı́a José Oruña-Concha ◽  
Julia López-Hernández ◽  
Jesús Ángel Simal-Lozano ◽  
...  

2019 ◽  
pp. 47-49
Author(s):  
A. A. Antoshkin ◽  
Sh. Anton ◽  
A. M. Smirnova ◽  
V. A. Ushakov ◽  
E. P. Pronina ◽  
...  

Relevance. Vegetable beans (Phaseolus vulgaris L.) – a valuable high-protein culture, which has multilateral use in the national economy, is recommended for dietary nutrition. The protein content in green beans and seeds varies from 18 to 30%, which in terms of amino acid composition is at the level of protein in milk and meat.The aim of the research is to create a new indeterminate medium-late resistant to major diseases varieties for farms growing that provide fresh produce (green beans) with a long fruiting period, without fiber and parchment in the leaflets of the green bean.Methods. Studies were carried out from 2008 to 2018 on breeding fields of the Federal Scientific Vegetable Center (Moscow Region, Odintsovo District). Scientific work was started in 2013 with an individual selection from collection sample No. 90K (Republic of Crimea). Since 2015, the constant form was propagated with a two-year test of offspring. All the necessary phenological, biometric and phytopathological observations and counts were performed according to the methods generally accepted for this culture.Results. The article presents data on a new variety of vegetable beans Malume of indeterminate (curly) type of growth. As a result of competitive variety testing in the conditions of the Central Non-chernozem Zone since 2018 to 2019, against a natural infectious background, the new variety significantly exceeded the Fatima standard for the yield of green beans and seeds, was characterized by a high content of mono-, the amount of sugars, starch, and was resistant to major diseases. At the end of 2019 year transferred to the State Variety Test.


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