scholarly journals Ragwort control - chemical control

1953 ◽  
Vol 6 ◽  
pp. 60-65
Author(s):  
R.K. Ward
Keyword(s):  
Chemical Control ◽  
Control Chemical

scholarly journals Cultural and Chemical Control of Ground Ivy (Glechoma hederacea)

HortScience ◽  
2004 ◽  
Vol 39 (5) ◽  
pp. 1148-1152 ◽  
Author(s):  
Eric A. Kohler ◽  
Clark S. Throssell ◽  
Zachary J. Reicher
Keyword(s):  
Acetic Acid ◽  
Nitrogen Fertilizer ◽  
Chemical Control ◽  
Field Research ◽  
Control Chemical ◽  
Dichlorophenoxy Acetic Acid ◽  
Glechoma Hederacea

Ground ivy is a common broadleaf weed that disrupts turf uniformity and is difficult to control. The objective of this field research was to evaluate cultural and chemical control of ground ivy. Increasing annual nitrogen fertilizer applications from 0 to 196 and 293 kg·ha-1 reduced ground ivy cover by 24% and 32%, respectively. At 26 weeks after treatment, 1.1 kg·ha-1 isoxaben applied in May limited ground ivy spread by 34% compared to the control. Triclopyr, 2,4-D, or fluroxypyr applied at the highest-labeled rate in October provided superior ground ivy control by the following May. Combining an annual fertility program of 196 kg·ha-1 nitrogen and an application of 1.1 kg·ha-1 isoxaben with or after an application of 2,4-D, fluroxypyr, or triclopyr in the fall can maximize ground ivy control. Chemical names used: N-[3-(1-ethyl-1-methylpropyl)-5-isoxazolyl]-2,6-dimethoxybenzamide (isoxaben); [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid (triclopyr); (2,4-dichlorophenoxy)acetic acid (2,4-D); [(4-amino-3,5-dichloro-6-fluoro-pyridyl)oxy]acetic acid (fluroxypyr).

scholarly journals Integrated Disease Management of Grain Legumes in Algeria and Strategies of Agricultural Development: A Review

2020 ◽  
Author(s):  
Ibrahim Elkhalil Benzohra ◽  
Hakima Belaidi ◽  
Boualem Boumaaza ◽  
Mohamed Mégateli
Keyword(s):  
Disease Management ◽  
Chemical Control ◽  
Agricultural Development ◽  
Integrated Control ◽  
Farming Systems ◽  
Grain Legumes ◽  
University Of California ◽  
Integrated Disease Management ◽  
Nutritional Security ◽  
Control Chemical

Grain legumes have an important role in Algerian agriculture contributing towards food, nutritional security and sustainable farming systems. This kind of culture has a several diseases can reduce the global production and yield. Causes of these major diseases we have to propose the integrated disease management for minimize the damage caused by these diseases. The term Integrated Pest Management was first based on the concept of ‘integrated control’ given by the entomologists from University of California, who defined it as “applied pest control” which combines and integrates cultural, biological and chemical control. Chemical control was used only if necessary and in a way which was least disruptive to cultural and biological control. 

scholarly journals UJI KERENTANAN NYAMUK Aedes aegypti TERHADAP LAMDA SIHALOTRIN DAN SIPERMETRIN TAHUN 2016

2016 ◽  
Vol 14 (3) ◽  
Author(s):  
Yulistra Naftali Eka Putra ◽  
Koerniasari . ◽  
Mamik .
Keyword(s):  
Aedes Aegypti ◽  
Chemical Control ◽  
Hemorrhagic Fever ◽  
White Paper ◽  
Control Group ◽  
Sugar Water ◽  
Lambda Cyhalothrin ◽  
Control Chemical ◽  
The Right ◽  
Susceptibility Status

Dengue Hemorrhagic Fever (DHF) in Indonesia is an endemic disease with morbidity level tends to increase from year to year and extends to 400 regencies/cities from 474 regencies/cities in Indonesia. This disease even frequently causes Outbreaks (KLB). One of the dengue controls is chemical control. Chemical control by using insecticides is the most popular form of control in the society because it is easy to implement. Insecticides are most commonly used are lambda cyhalothrin and sipermetrin because it is cheap and readily available. The use of the same insecticide for around 2-20 years and improper dosage can cause mosquitoes to become resistant. This study aimed to test the susceptibility of mosquitoes to Lamdacyhalothrin and cypermethrin. This research was experimental and the study design used "with Pretest-Posttest Control Group". Susceptibility Test used 500 Aedesaegypti mosquito as sample and using 20 tubes with ach tube is filled 25 mosquitoes. 0.05% of Lamdacyhalothrin and 0.05% of cypermethrin were put in 8 tubes while for control was 4 tubes containing plain white paper. Mosquitoes were exposed for 1 hour, then transferred into paper cup containing cotton containing sugar water, then stored for 24 hours. The observation was then carried out and calculating the percentage of dead mosquitoes. The results showed the number of dead mosquitoes with Lamdacyhalothrin was 7%, included in the category of resistance (WHO). The number of dead mosquitoes with cypermethrin was 2.5% which is also in the category of resistance. This susceptibility status categories are taken based on the criteria of the WHO, the mortality <80% means resistant, the mortality of 80-97% are tolerant, and 98% - 100% is susceptible (WHO, 1975) The society is advised  to use insecticide in the right dose, limiting the excessive use of insecticides and if necessary, only to use non-chemical control.  Keywords : Aedes aegypti, Suceptibility Test, Lamdacyhalothrin, Cypermethrin

scholarly journals Eucalypt Growth Submitted to Management of Urochloa spp.

2016 ◽  
Vol 34 (1) ◽  
pp. 99-107
Author(s):  
G.L. FERREIRA ◽  
D.T. SARAIVA ◽  
G.P. QUEIROZ ◽  
D.V. SILVA ◽  
G.A.M. PEREIRA ◽  
...  
Keyword(s):  
Weed Management ◽  
Chemical Control ◽  
Dry Matter ◽  
Control Method ◽  
Initial Growth ◽  
Mechanical Control ◽  
Control Chemical ◽  
Urochloa Decumbens ◽  
Collar Diameter ◽  
Urochloa Brizantha

The objective of this work was to evaluate the initial growth and the physiological characteristics of eucalypt submitted to different managements of signalgrass. The experiment was conducted in a protected environment, using a randomized blocks design with five repetitions. The treatments were arranged in a (5 x 2) + 1 factorial design, and the first factor corresponded to the types of weed management (no control; chemical control keeping the signalgrass shoot on the soil; chemical control with removal of the signalgrass shoot; mechanical control keeping the signalgrass shoot on the soil, and mechanical control with removal of the signalgrass shoot); the second factor corresponded to the two weeds species (U. brizantha and U. decumbens) and a control relative to the eucalypt in monoculture. The eucalypt growth was not affected by the presence of the Urochloa species until 50 days after treatments (DAT). However, the coexistence of these species with eucalypt for 107 DAT reduced the collar diameter, total dry matter, and the leaf area, but did not alter the characteristics related to photosynthesis and transpiration. The control method adopted, with removal or maintenance of the signalgrass shoot, regardless of species, did not change the initial eucalypt growth. It can be concluded that the coexistence of eucalypt with Urochloa decumbens or Urochloa brizantha for 105 days reduces the eucalypt growth. However, the use of chemical or mechanical control, with or without removal of signalgrass residue, were effective methods to prevent interference of these weeds.

Iron and chemical control of breathing

Pneumologie ◽  
2010 ◽  
Vol 64 (01) ◽  
Author(s):  
J Antosiewicz ◽  
M Walski ◽  
M Pokorski
Keyword(s):  
Chemical Control ◽  
Control Of Breathing

Weed Management in Small Grains Harvested for Grain

EDIS ◽  
2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Jason Ferrell ◽  
Gregory MacDonald ◽  
Pratap Devkota
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Chemical Control ◽  
Management Practices ◽  
Good Management ◽  
Small Grains ◽  
Crop Competition

Successful weed control in small grains involves using good management practices in all phases of production. In Florida, winter weeds compete with small grains for moisture, nutrients, and light, with the greatest amount of competition occurring during the first six to eight weeks after planting. Weeds also cause harvest problems the following spring when the small grain is mature. This 4-page publication discusses crop competition, knowing your weeds, and chemical control. Written by J. A. Ferrell, G. E. MacDonald, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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