Bioecological properties of underground pests in cultivation of potatoes planted after grain

E3S Web of Conferences ◽

10.1051/e3sconf/202124402033 ◽

2021 ◽

Vol 244 ◽

pp. 02033

Author(s):

Azamjon Khudoykulov ◽

Azimjon Anorbaev ◽

Gulnoza Kholikova

Keyword(s):

Sugar Beet ◽

Agrotis Segetum ◽

Pest Damage ◽

Recurrence Period ◽

Developmental Characteristics ◽

Agricultural Areas ◽

Root Collar

In the conditions of Tashkent and Samarkand provinces of Uzbekistan, autumn moth (Agrotis segetum Den. Et Sshiff) is one of the most common pests in irrigated agricultural areas. The worms of this pest damage hundreds of crops belonging to 34 families and infect cotton, alfalfa, sugar beet, corn, cereals, legumes, oilseeds and vegetables, melons and potatoes, as well as ivy, wild coconut, sorghum, and oats. Autumn nocturnal worms pierce the seed pods, damaging the root collar of young sprouting crops. The developmental characteristics of underground pests of potatoes planted in the post-grain recurrence period were studied, their bioecology according to the characteristics of damage to various crops.

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The concentration of lamdacyhalothrin and its effect on the cutworm Agrotis segetum (Lepidoptera: Noctuidae)

Bulletin of Entomological Research ◽

10.1017/s0007485300051208 ◽

1991 ◽

Vol 81 (2) ◽

pp. 143-145 ◽

Cited By ~ 2

Author(s):

B.W. Blair

Keyword(s):

Fourth Instar ◽

Synthetic Pyrethroid ◽

Agrotis Segetum ◽

Economic Plant ◽

Initial Screening ◽

Pest Damage ◽

Plant Damage ◽

Antifeedant Effect ◽

Equivalent Rate ◽

Lepidoptera Noctuidae

AbstractDuring initial screening of the synthetic pyrethroid lamdacyhalothrin (PP 321) at a concentration of 44 and 22 mg/l and applied as a 30 ml drench over each plant against third to fourth instar cutworms, Agrotis segetum (Denis & Schiffermüller) in microplots, few died but they did not damage the plants. Reducing the concentrations to 11 and 5.5 mg/l increased mortality and plant damage. When A. segetum were confined on soil treated with the insecticide at concentrations of 22, 11 and 5.5 mg/l and sprayed at an equivalent rate of 500 l/ha, they all died within one day. The higher concentrations appeared to have a repellent and/or antifeedant effect, and it has been possible to reduce the concentration of lamdacyhalothrin to 12.5 mg/l (≡5.6g a.i./ha) for the drench treatment without risking economic plant damage. For insecticides that have repellent and/or antifeedant properties, it should be possible to balance lower concentrations with adequate protection of plants from pest damage.

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Agrotis segetum granulosis virus as a control agent against field populations ofAgrotis ipsilon andA. Segetum [Lep.: Noctuidae] on tobacco, okra, potato and sugar beet in northern pakistan

Entomophaga ◽

10.1007/bf02373513 ◽

1987 ◽

Vol 32 (5) ◽

pp. 449-455 ◽

Cited By ~ 9

Author(s):

O. Zethner ◽

Bashir M. Khan ◽

M. Ismail Chaudhry ◽

B. Bolet ◽

Sharfuddin Khan ◽

...

Keyword(s):

Sugar Beet ◽

Control Agent ◽

Agrotis Segetum ◽

Northern Pakistan ◽

Granulosis Virus

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The Abundance and Dynamics of Lepidoptera Pests from Maize, Soybean, Sugar Beet Crops, In Conditions Of Agricultural Research And Development Station Turda

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Agriculture ◽

10.15835/buasvmcn-agr:6474 ◽

2011 ◽

Vol 68 (1) ◽

Author(s):

Adina Daniela IVAS ◽

Felicia MUREŞANU

Keyword(s):

Sugar Beet ◽

Plutella Xylostella ◽

Ostrinia Nubilalis ◽

Sex Pheromones ◽

Agricultural Research ◽

Climatic Conditions ◽

Agrotis Segetum ◽

Mamestra Brassicae ◽

Autographa Gamma ◽

Agricultural Research And Development

This paper presents experimental data conducted for this purpose, during 2009 – 2010 in ARDS Turda. Species of Lepidoptera present in field crops, studied in ARDS Turda are: Agrotis segetum (Den. & Schiff.), Autographa gamma L., Amathes c-nigrum L., Mamestra brassicae L., Ostrinia nubilalis Hbn., Plutella xylostella L.. The research were performed at ARDS Turda, during 2009 - 2010 in crops: maize, sugar beet and soybean; were used F1 traps type) with synthetic sex pheromones of the Romanian Institute of Chemistry Cluj - Napoca. Traps were placed in 3 repetitions, at the 50 m distance between, during June-September. The adhesive used was based on polyisobutylene, produced by the same institute. Pheromones baits and sticky plates were changed at 10 days, when were recorded the number of captured Lepidoptera. To compare data obtained, was performed percentage distribution of species of Lepidoptera, and observations on the abundance of Lepidoptera pests, highlighting the appeal and sex pheromones specific for the most common Lepidoptera. At ARDS Turda, in maize, sugar beet and soybean, under normal climate of the years 2009- 2010, were registered, in sex pheromones traps, more than 1.400 adults of the mentioned Lepidoptera species. These species showed a well defined allocation percentage as follows: Ostrina nubilalis represented a very significant percentage between 39.0 - 68.0% of the total of Lepidoptera pests, Autographa gamma 12,0-25,0%, Amathes c-nigrum 14,0-16,0% and other species (Mamestra brassicae, Plutella Xylostella, Agrotis segetum) between 2,0-11,0%. The results have resulted in flight curves of the most common Lepidoptera pest crops, which shows the evolution of species according to specific climatic conditions, thus knowing the best time for applying treatments.

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Triggering Influence of Seasonal Agricultural Irrigation on Shallow Loess Landslides on the South Jingyang Plateau, China

Water ◽

10.3390/w11071474 ◽

2019 ◽

Vol 11 (7) ◽

pp. 1474 ◽

Cited By ~ 5

Author(s):

Rui-Xin Yan ◽

Jian-Bing Peng ◽

Qiang-Bing Huang ◽

Li-Jie Chen ◽

Chen-Yun Kang ◽

...

Keyword(s):

Soil Erosion ◽

Large Scale ◽

Field Investigation ◽

Agricultural Irrigation ◽

The South ◽

Field Investigations ◽

Static Liquefaction ◽

Loess Landslides ◽

Developmental Characteristics ◽

Agricultural Areas

Since large-scale agricultural irrigation began in the 1980s, 92 landslides have occurred around the South Jingyang Plateau during the past 40 years. The geological disaster and soil erosion have caused numerous casualties and substantial property loss. In this work, several field investigations are carried out to explore the soil erosion and mechanical mechanism of these irrigated shallow loess landslides on the South Jingyang Plateau. (1) We investigated the spatial distributions, types and developmental characteristics of loess landslides. (2) We surveyed and monitored seasonal agricultural irrigation features and groundwater changes in the area since the 1980s and found that irrigation is a significant factor influencing groundwater changes, soil erosion and even causing landslides to occur. (3) Based on the field investigation, the occurrence of these irrigated shallow loess landslides was generalized, and it was found that the core process was due to the liquefaction of softening zone. We carried out a static liquefaction test and verified that the natural loess was prone to liquefaction. (4) The three main reasons for shallow loess landslides in the South Jingyang Plateau were discussed. This study provides a valuable reference for achieving an understanding of the relationship between seasonal agricultural irrigation and the occurrence of loess landslides in the area as well as similar irrigated agricultural areas.

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Evaluation of results from use of monitoring Turnip moth (Agrotis segetum Den. et Schiff.) in sugar beet plantation in 2009–2012

Progress in Plant Protection ◽

10.14199/ppp-2013-006 ◽

2013 ◽

Vol 53 (4) ◽

Keyword(s):

Sugar Beet ◽

Agrotis Segetum ◽

Turnip Moth

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The dynamics of development of cotton bollworm (Helicoverpa armigera H?bner, 1805) and turnipmoth (Agrotis segetumSchif, 1775) (Lepidoptera; Noctuidae) in the sugar beet agrocenosis

The Agrarian Scientific Journal ◽

10.28983/asj.y2020i11pp54-57 ◽

2020 ◽

pp. 54-57

Author(s):

Gazı Galib Seliqe

Keyword(s):

Sugar Beet ◽

Helicoverpa Armigera ◽

Practical Importance ◽

Biological Characteristics ◽

Cotton Bollworm ◽

Agrotis Segetum ◽

Turnip Moth ◽

Comprehensive Information ◽

Helicoverpa Armígera ◽

Lepidoptera Noctuidae

There is comprehensive information about the dynamics of the development of cotton bollworm (Helicoverpa armigera) and turnip moth (Agrotis segetum) belonging to order Lepidoptera in the sugar beet agrocenosis. The seasonal and diurnal flying-dynamics of both species, harmful period of the caterpillars in the agrocenosis, and some biological characteristics have been investigated during the studies. Obtained results can have practical importance for the control of these pests.

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The early development of antenna and antennal sensilla in the noctuid moth, Agrotis segetum (Insecta: Lepidoptera)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100160066 ◽

1990 ◽

Vol 48 (3) ◽

pp. 502-503

Author(s):

Eric Hallberg ◽

Lina Hansén

Keyword(s):

Cell Death ◽

Stem Cell ◽

Early Development ◽

Larval Stage ◽

Pupal Stage ◽

Agrotis Segetum ◽

Antennal Sensilla ◽

Noctuid Moth ◽

Standard Procedures

The antennal rudiments in lepidopterous insects are present as disks during the larval stage. The tubular double-walled antennal disk is present beneath the larval antenna, and its inner layer gives rise to the adult antenna during the pupal stage. The sensilla develop from a cluster of cells that are derived from one stem cell, which gives rise to both sensory and enveloping cells. During the morphogenesis of the sensillum these cells undergo major transformations, including cell death. In the moth Agrotis segetum the pupal stage lasts about 14 days (temperature, 25°C). The antennae, clearly seen from the exterior, were dissected and fixed according to standard procedures (3 % glutaraldehyde in 0.15 M cacaodylate buffer, followed by 1 % osmiumtetroxide in the same buffer). Pupae from day 1 to day 8, of both sexes were studied.

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