2010

29 Dec 2010	New editions List of Names of Woody Plants and Perennials
	The new editions of the List of Names of Woody Plants and the List of Names of Perennials have been published. Both lists, for the period 2010-2015, have been updated. Over 5000 new names have been... more
21 Oct 2010	Hormonal levels in flower bulbs indicator of quality
	The levels and relative proportions of hormones in flower bulbs may offer indications of quality before a flower has formed. In a joint project, PPO and the Laboratory of Plant Physiology, both of... more
16 Oct 2010	Many visitors Beet Europe 2010 in Lelystad
	On Thursday 14 October over 2000 visitors attended the demonstration day ‘Beet Europe 2010’ at PPO-AGV in Lelystad. Over 800 visitors came from abroad, mainly Germany, Belgium and France. Many arable... more
7 Oct 2010	Record harvest of coarse pears
	In mid-September at PPO Fruit in Randwijk a remarkably large amount of coarse pears were harvested in a fruit-thinning trial with the Conference variety. The trial was conducted on the same land... more
23 Sep 2010	Fusarium Screen for tulips
	Fusarium oxysporum f. sp. tulipae causes dry rot in tulips. Every year this disease leads to losses of around 10 million euros in the sector despite painstaking efforts to control it. PPO and PRI are... more
1 Sep 2010	Standard parameters counteract soil degradation
	Wageningen UR conducts many kinds of soil research. An umbrella programme has been established to coordinate the various types of research. The aim is develop a standard set of parameters that will... more
27 Aug 2010	Controlling downy mildew in onions
	Infections with downy mildew can be delayed by starting with "clean" planting material. In the case of onion sets, a warm water treatment before planting is one way eliminate any contamination of the... more
26 Aug 2010	Consumers relatively positive about the role of GM vegetables and fruit in alleviating health problems
	Consumers are more favourable towards genetically modified vegetables and fruit when these products have extra health benefits. They especially feel positive if the genetic modification can alleviate... more
12 Aug 2010	Santana and new sprayer keep surface water clean
	Fruit growers can reduce the contamination of surface water by 98% with a new system that was developed in the six-year programme Smaak van Morgen (Taste of Tomorrow). The aim of the programme is to... more
11 Aug 2010	Growing crops without soil is better for the environmen
	Broccoli, strawberries, summer flowers, flower bulbs and trees do not need soil to grow. They can also be grown in water or on substrate, and that is better for the environment. However, the costs... more
4 Aug 2010	Biological soil disinfestation offers perspectives for all soil-bound cultivations
	Biological soil disinfestation consists of the incorporation of fermented organic material after which the soil is covered with plastic. This results in the release of compounds with a disinfecting... more
22 Jun 2010	Mutual trust is a precondition for successful entrepreneurship education
	Mutual trust appears to be one of the key requirements for successful entrepreneurship education, where students, entrepreneurs, teachers and researchers work together to ensure that the project... more
1 Jun 2010	Automatic tree girth measurement to be tested in practice this autumn
	Wageningen UR Greenhouse Horticulture has developed two prototypes of measuring equipment for automated tree girth measurement for PPO Nursery Stock. This autumn these prototypes will be tested and... more
31 May 2010	Controlling the raspberry cane midge to prevent cane diseases
	In recent years, the raspberry cane midge has caused more and more problems. In 2009, for example, the entire raspberry crop was lost on several parcels. In the spring of 2010, the Kennis- en... more
28 May 2010	Expo Park Shanghai draws royal attention from the Netherlands
	At the World Expo in Shanghai, landscape architect Niek Roozen led Princess Maxima and Crown Prince Willem-Alexander on a tour of the Expo Park. The royal couple was impressed by the park and the... more
19 May 2010	New manager for PPO Bulbs, Trees & Fruit
	On 15 June, Bert Pinxterhuis was appointed manager of the PPO business unit Flower Bulbs, Nursery Stock & Fruit. He succeeds Ernst van den Ende, who was appointed Managing Director of the Plant... more
6 May 2010	New detection method fruit tree cancer in graft wood
	PPO is developing a new method for the detection of fruit tree cancer (Nectria galligena) in graft wood. This annual wood is used for the reproduction of trees. Via a DNA test it is already... more
15 Apr 2010	'Primed' chicory seed germinates quickly
	The fastest germinating seeds in a chicory seed test performed by Applied Plant Research (Praktijkonderzoek Plant & Omgeving, PPO), part of Wageningen UR, saw the light of day on Friday 9 April, only... more
13 Apr 2010	Cooperation PPO and Fruitconsult leads to demonstration orchard
	As of now, Fruitconsult will be managing the (standard) care of the orchards of PPO (Applied Plant Research, part of Wageningen UR) in Randwijk. This not only makes this experimental site a good... more
9 Apr 2010	`Beetle eater` successful in asparagus
	The "Beetle eater" is a large vacuum cleaner that can be mounted at the front or back of a tractor. The machine can, by blowing and sucking, remove beetles and caterpillars from the crop. After... more
6 Apr 2010	Downy mildew control in sunflowers
	Downy mildew is the largest disease problem in sunflower cultivation. It is caused by the oomycete Plasmopara halstedii. As resting spore downy mildew can survive in the soil up to ten years. These... more
31 Mar 2010	SensiSpray; big step forward towards tomorrow’s crop protection
	Scientists and company win innovation prizeOn 26 March Johannes de Boer, on behalf of Homburg Machinehandel, and Corné Kempenaar, on behalf of Research International, received the KIZ innovation... more
23 Mar 2010	PPO calls for conscientious use of granules
	Unnecessary use of granules reduces profitability.This is the message of Thea van Beers, scientist Arable Crops, Multifunctional Agriculture and Field Production of Vegetables at PPO (Applied Plant... more
16 Mar 2010	New format for Plant Health Report 2009
	The report on the results of the policy-supporting plant health study has been published in a new form. The old ‘flyer book’ has been replaced by loose quires covering a theme. Each quire contains A4... more
15 Mar 2010	Plant Sciences Group active in European phytoplasma research
	Scientists of the Plant Sciences Group of Wageningen UR represent the Netherlands in the European COST action of Integrated Management of Phytoplasma Epidemics in Different Crop Systems. This COST... more
14 Mar 2010	New report shows economic advantage cooperation
	Cooperation between agricultural holdings leads to advantages of scale without high financial burdens. But still, cooperation is not widespread. Why are farmers and growers reluctant? And why would... more
11 Mar 2010	PPO wishes to search for solution root problems in Muscari en Scilla
	Research by Applied Plant Research (PPO) of Wageningen UR has shown that rooting problems of Muscari and Scilla may be caused by phytoplasmas. Phytoplasmas were already known to cause rooting... more
5 Mar 2010	Lighting in tulip forcing adjusted according to need
	Plants need light for growth and development. Some bulb crops, however, have so much spare food in their bulb that they do not need growing light for flower production. Forcing of tulips, e.g., only... more
4 Mar 2010	Alternaria advances in potatoes
	Potato growers in the Netherlands seem to be facing expanding alternaria infestations. One reason for this, according to PPO scientist Huub Schepers, is the changing climate. 'Alternaria is... more
3 Mar 2010	Plant Health Portal online!
	A new Plant Health Portal became available recently. This Portal is the focal point for presenting knowledge, experience and teaching aids concerning plant health, plant protection, fertilisation,... more
26 Feb 2010	Tree nursery sector strong in the Netherlands
	The Netherlands tree nursery sector holds a strong international position. This is shown by the Competition Monitor Nursery Stock published by LEI, in which the sector is compared with that in the... more
25 Feb 2010	Broader position for Fruit Cultivation Centre Randwijk
	Wageningen UR and Radboud University are developing a business plan for broadening the Fruit Cultivation Centre in Randwijk to other horticultural sectors for which an innovation subsidy of 450.000... more
	Earlier tackling of viruses in bulbs
	Flower bulb growers should move towards the prevention of viruses in flower bulbs.This saves money. This is what Maarten de Kock, virology researcher at PPO Flower Bulbs in Lisse, is saying. De Kock... more
24 Feb 2010	Tulip gall mite and botrytis cause loss in Value for Use testing
	Organic flower bulb growers are selecting cultivars from the regular assortment. It is not clear whether these cultivars are suitable for organic cultivation. Experimental station Zwaagdiijk tested... more
4 Feb 2010	New, practical flyers on late blight control available
	Late blight in potato, caused by Phytophthora infestans, is still one of the largest threats to potato cultivation. Not only in the Netherlands, but worldwide. The Potato Case Study team of the EU... more
13 Jan 2010	Side effect of pesticides on earwigs
	Growers like to use earwigs for the control of pear psylla and woolly apple aphid. In particular as result of the use of pesticides, earwigs are in recent years hardly found in orchards. PPO and PRI... more
12 Jan 2010	Bacteriophages are controlling bacterial diseases in potatoes and flower bulbs
	In 2009 PRI started, together with PPO, a study into bacteriophages for the control of bacterial diseases in potato and flower bulbs. Bacteriophages are viruses that can very specifically kill... more