NEMATODE CONTROL STRATEGIES IN THE NETHERLANDS

2005 ◽  
pp. 83-88
Author(s):  
L.P.G. Molendijk ◽  
G.W. Korthals
Keyword(s):  
The Netherlands ◽  
Control Strategies ◽  
Nematode Control

scholarly journals From Old-Generation to Next-Generation Nematicides

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1387
Author(s):  
Yuji Oka
Keyword(s):  
Control Strategies ◽  
Intensive Agriculture ◽  
Control Methods ◽  
Nematode Control ◽  
Next Generation ◽  
Control Efficacy ◽  
Cash Crops ◽  
Low Toxicity ◽  
High Control ◽  
Soil Fumigants

The phaseout of methyl bromide and the ban on, or withdrawal of, other toxic soil fumigants and non-fumigant nematicides belonging to the organophosphate and carbamate groups are leading to changes in nematode-control strategies. Sustainable nematode-control methods are available and preferred, but not always effective enough, especially for cash crops in intensive agriculture. A few non-fumigant nematicides, which have a relatively high control efficacy with a low toxicity to non-target organisms, have been released to the market or are in the process of being registered for use. Fluensulfone, fluopyram, and fluazaindolizine are the three main and most promising next-generation nematicides. In this paper, several aspects of these non-fumigant nematicides are reviewed, along with a brief history and problems of old-generation nematicides.

scholarly journals Short communication: A practical farm-based trial to compare ewe nematode control strategies in peri-parturient ewes

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0236143
Author(s):  
Charlotte L. Kerr ◽  
David R. Armstrong ◽  
Alison J. Anderson
Keyword(s):  
Short Communication ◽  
Control Strategies ◽  
Nematode Control

scholarly journals Epidemiological and economic evaluation of foot-and-mouth disease control strategies in the Netherlands.

1989 ◽  
Vol 37 (1) ◽  
pp. 1-12
Author(s):  
A.A. Dijkhuizen
Keyword(s):  
The Netherlands ◽  
Markov Chain Model ◽  
Control Strategies ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Economic Losses ◽  
Chain Model ◽  
Increased Risk ◽  
Foot And Mouth ◽  
Prophylactic Vaccination

A Markov chain model for a microcomputer is described in which the economic aspects of control strategies for foot-and-mouth disease in cattle and pig herds can be examined. Epidemiologically, the most favourable results for the Netherlands were obtained using the current strategy: annual vaccination of cattle combined with slaughtering of affected herds and ring vaccination. However, it is suggested that annual costs could be reduced considerably by ceasing routine prophylactic vaccination, provided that adequate measures are taken when outbreaks occur. It is concluded that the increased risk of export bans, not yet included in this simulation model, is unlikely to outweigh the benefits of reducing annual direct costs. All pathways and control strategy, cost elements and default values included in the model are tabulated as are the probable epidemiology during an outbreak, secondary outbreaks, total direct economic losses per outbreak and per year, and a results sensitivity analysis. (Abstract retrieved from CAB Abstracts by CABI’s permission)

The Microthrix parvicella Puzzle

1994 ◽  
Vol 29 (7) ◽  
pp. 271-279 ◽  
Author(s):  
Dick H. Eikelboom
Keyword(s):  
The Netherlands ◽  
Activated Sludge ◽  
Population Size ◽  
Nutrient Removal ◽  
Ecological Niche ◽  
Control Strategies ◽  
Maximum Size ◽  
Activated Sludge Process ◽  
Filamentous Bacteria ◽  
Microthrix Parvicella

Nowadays the excessive growth of many filamentous bacteria in activated sludge plants can be controlled by the application of so-called selectors. In the Netherlands, about 80 selectors have been constructed at full scale plants so far. However, selectors are frequently not very effective for controlling bulking if M. parvicella is dominating the sludge population. As M. parvicella has also been frequently observed in nutrient removal plants, the development of control strategies for this bacterium has become very urgent. From the substantial information on the occurrence of and attempts to control M. parvicella collected during the last decade, several main conclusions can be drawn.The development of M. parvicella in Dutch treatment plants shows a very distinctive seasonal rhythm, the population reaching its maximum size in early spring.Foaming in Dutch treatment plants is usually caused by M. parvicella.M. parvicella and Actinomycetes spp. seem to compete for the same ecological niche in treatment plants.By comparing the population size of M. parvicella as a function of various modifications in the activated sludge process, it is concluded that this bacterium grows better in so-called carrousel systems than in other extended aeration plants.M. parvicella causes severe bulking in carrousels fed with presettled sewage.The impact/usefulness of selectors for controlling M. parvicella seems to decrease as the overall sludge load of the plant increases. This information is presented to start a discussion about possibilities to solve the M. parvicella puzzle.

scholarly journals First report of a North American invasive mosquito species Ochlerotatus atropalpus (Coquillett) in the Netherlands, 2009

2009 ◽  
Vol 14 (45) ◽  
Author(s):  
E J Scholte ◽  
W Den Hartog ◽  
M Braks ◽  
C Reusken ◽  
M Dik ◽  
...  
Keyword(s):  
North America ◽  
The Netherlands ◽  
Aedes Albopictus ◽  
Health Risks ◽  
Control Strategies ◽  
Mosquito Species ◽  
Virus Transmission ◽  
Weather Conditions ◽  
Invasive Mosquito ◽  
Southern Netherlands

In late August and early September 2009, numerous larvae, pupae, and actively flying adult specimens of Ochlerotatus atropalpus were discovered in the Province of Brabant, southern Netherlands, during surveillance activities for Aedes albopictus at two trading companies that import used tires. No Ae. albopictus were found. Both companies mainly import used tires from countries in Europe, but also from North America. Oc. atropalpus is endemic to North America and has so far only been found outside of its endemic range in Europe, namely France and Italy, where it was subsequently eradicated. A preliminary modelling study shows that the weather conditions in the Netherlands are unlikely to prevent establishment of Oc. atropalpus. This species has so far only been shown to serve as a vector for virus transmission under laboratory conditions. Studies on potential human and veterinary health risks, as well as possible control strategies are currently ongoing.

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