Field Crop Arthropod Pests of Economic Importance

2022 ◽  
Keyword(s):  
Economic Importance ◽  
Field Crop ◽  
Arthropod Pests

Investigations on yield in the cereals: V. A Study of four wheat fields: the limiting effect of population-density on yield and an analytical comparison of yields

1928 ◽  
Vol 18 (2) ◽  
pp. 317-345 ◽  
Author(s):  
L. R. Doughty ◽  
F. L. Engledow
Keyword(s):  
Population Density ◽  
Unit Length ◽  
Economic Importance ◽  
Plant Population ◽  
Field Crop ◽  
Analytical Comparison ◽  
Potential Maximum

In any field of corn the population-density or number of plants per unit length of row is very fluctuating. Accidental circumstances may result in considerable stretches being empty or thinly populated. Quite apart from this, the population of successive short lengths is sharply and characteristically inconstant. Where plants are few tillering is profuse and there is thus a tendency towards constancy in yield per unit length of row. Specific ascertainment has, in earlier experiments, suggested that the tendency is by no means marked. In consequence fluctuation of population-density in the sense here used, reduces yield in typical field crop substantially below the potential maximum appropriate to the soil and other circumstances. From short lengths of row, low in plant-population, yields are low. In aggregate these sparsely populated lengths are a feature of considerable economic importance.

scholarly journals Coconut Mite, Aceria guerreronis Keifer (Arachnida: Acari: Eriophyidae)

EDIS ◽  
2007 ◽  
Vol 2007 (6) ◽  
Author(s):  
F. W. Howard ◽  
Dave Moore
Keyword(s):  
Economic Importance ◽  
Aceria Guerreronis ◽  
Fact Sheet ◽  
Coconut Mite ◽  
Fruit Drop ◽  
Arthropod Pests

EENY-398, a 7-page illustrated fact sheet by F. W. Howard and Dave Moore, describes one of the worst arthropod pests of coconut palms, which attacks the young fruits and can cause scarring and distortion and premature fruit drop.  Includes sections on distribution, description, biology and ecology, hosts, damage and economic importance, detection, management, and selected references. Published by the UF Department of Entomology and Nematology, December 2006.  EENY-398/IN709: A Coconut Mite, Aceria guerreronis Keifer (Arachnida: Acari: Eriophyidae) (ufl.edu)

scholarly journals Acaro del coco, Aceria guerreronis Keifer (Arácnidae: Acari: Eriophyidae)

EDIS ◽  
2007 ◽  
Vol 2007 (19) ◽  
Author(s):  
Forrest W. Howard ◽  
Dave Moore ◽  
Edwin Abreu ◽  
Sergio Gallo
Keyword(s):  
Economic Importance ◽  
Spanish Language ◽  
Aceria Guerreronis ◽  
Language Version ◽  
Fact Sheet ◽  
Coconut Mite ◽  
Fruit Drop ◽  
Arthropod Pests

EENY-405, a 7-page illustrated fact sheet by F. W. Howard, Dave Moore, Edwin Abreu, and Sergio Gallo, is part of the Featured Creatures collection, and is the Spanish-language version of EENY-398/IN709: A Coconut Mite, Aceria guerreronis Keifer (Arachnida: Acari: Eriophyidae). It describes one of the worst arthropod pests of coconut palms, which attacks the young fruits and can cause scarring and distortion and premature fruit drop. Includes sections on distribution, description, biology and ecology, hosts, damage and economic importance, detection, management, and selected references. Published by the UF Department of Entomology and Nematology, June 2007. EENY-405/IN744: Acaro del coco, Aceria guerreronis Keifer (Arácnidae: Acari: Eriophyidae) (ufl.edu)

Entomopathogenic Nematodes of Thrips Thripinema spp. (Nematoda: Tylenchida: Allantonematidae)

EDIS ◽  
2017 ◽  
Vol 2017 (5) ◽  
pp. 4
Author(s):  
Danielle M. Sprague ◽  
Joseph E. Funderburk
Keyword(s):  
Life Cycle ◽  
Entomopathogenic Nematodes ◽  
Economic Importance

Originally published on the Featured Creatures Website at http://entnemdept.ufl.edu/creatures/nematode/Thripinema_spp.htm Includes: Introduction - Distribution - Life Cycle and Biology - Symptoms - Hosts and Identification - Economic Importance - Management - Selected References

Water balance, drought stress and yields for rainfed field crop rotations under present and future conditions in the Czech Republic

2015 ◽  
Vol 65 ◽  
pp. 175-192 ◽  
Author(s):  
P Hlavinka ◽  
KC Kersebaum ◽  
M Dubrovský ◽  
M Fischer ◽  
E Pohanková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Drought Stress ◽  
Water Balance ◽  
Crop Rotations ◽  
Field Crop ◽  
The Czech Republic

Crop rotations with clover and their productivity

2020 ◽  
Author(s):  
Ol'ga Gladysheva ◽  
Oksana Artyuhova ◽  
Vera Svirina
Keyword(s):  
Forest Soil ◽  
Crop Rotation ◽  
Gray Forest Soil ◽  
Arable Land ◽  
Perennial Grasses ◽  
Crop Rotations ◽  
Field Crop ◽  
Pure Steam ◽  
Positive Effect

The results of long-term research in experiments with crop rotations with different clover saturation are presented. It is shown that the cluster has a positive effect on the main indicators of vegetation of dark-gray forest soil. The introduction of two fields of perennial grasses into the six-field crop rotation significantly increases both the humus reserves and increases the productivity of arable land by 1.5–2 times compared to the crop rotation with a field of pure steam.

El peso económico del deporte en Cataluña en 2006

2020 ◽  
Vol 30 (2) ◽  
pp. 655
Author(s):  
Júlia Bosch ◽  
Laura Capel ◽  
François Cougoule ◽  
Gissel Ferrari ◽  
Daniel Serra ◽  
...  
Keyword(s):  
Economic Importance ◽  
Economic Weight

The practice of sport, at high competitive level or at participative level, needs the consumption of sport products or services; which generates production and employment. In this context, it is relevant to measure the economic importance of the sport sector. That is, questions such as what the economic weight of sport is, or how many jobs are related to sport are some of the issues this study would like to answer in the case of Catalonia. Data are referred to year 2006.

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