|
|
|
|
|
| Daniel, Claudia; Collier, Rosemary; Niggli, Urs; Koller, Martin. |
| Preventative measures and the creation of resilient growing systems are key parts of pest management practice in organic field vegetable production (see also chapter 1). Soil improvement, crop rotation, site selection, habitat management, variety choice, timing of planting and plant spacing are all considered before planting in order to avoid the most detrimental pest problems. Due to the huge variety of vegetable crops and their associated pest insects, specific tailored approaches are necessary. The effects of cultural practices to reduce pest outbreaks, such as weed control, appropriate irrigation, suitable fertilization, the use of mulches, and adjusted harvest times have been investigated during the last few years. For some crops (e.g. cabbage and... |
| Tipo: Book chapter |
Palavras-chave: Crop husbandry Vegetables Crop health; Quality; Protection. |
| Ano: 2018 |
|
| |
|
| |
|
|
| Collier, Rosemary; Daniel, Claudia; Hommes, Martin; Jukes, Andrew. |
| According to David Pimentel, 20 years ago, less than 0.1% of the pesticides applied reached their target pests (Pimentel, 1995). This was partly due to ‘poor’ application methods and partly because of the minuscule amount of pesticide either picked up or consumed by the pest. At the time, Pimentel was describing the application of pesticides mainly by sprays, including aerial spraying, and both pesticide chemistry and application technology have improved since then. However, a considerable proportion of pesticides are still applied as sprays, either to crop foliage or to the soil, and this continues to be a relatively untargeted method of application. |
| Tipo: Working paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2015 |
URL: http://orgprints.org/32296/1/2015_FocusGroupBrassicaSelectivity.pdf |
| |
|
|
| Daniel, Claudia; Collier, Rosemary; Thomas, Jane; Hommes, Martin. |
| Pests and pathogens of Brassica vegetables and oilseed rape are mainly managed at a field level. Management of pest insects at a farm level is only suitable for farmers owning compact areas of land, which is not the case in many central European areas. This situation favours direct, short-term control of mobile pests and pathogens over preventive, long-term strategies to lower the overall population level. Regional or area-wide control is difficult to establish because it requires considerable collaboration between neighbouring farmers. In addition, research institutions usually lack the appropriate size of farms to prove that these strategies can have a reliable efficacy which would warrant greater efforts by farmers to collaborate on a regional basis.... |
| Tipo: Working paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2015 |
URL: http://orgprints.org/32293/1/2015_FocusGroupBrassica_Landscape.pdf |
| |
|
|
| Collier, Rosemary; Jukes, Andrew; Daniel, Claudia; Hommes, Martin. |
| Abstract: There has been a lot of emphasis over the years on the development and use of pesticides that are specific and/or physiologically selective. This is a property of the chemistry and mode of action of the pesticide and the physiological and biochemical attributes of organisms. However, there is also the potential to make pesticides more selective through their judicious use, based on critical selection, timing, dosage, placement and formulation of pesticides (which are often broad spectrum). This paper discusses approaches to increase the ecological selectivity of pesticides and pesticide application methods, in the context of Integrated Pest Management in Brassica crops. Topics covered include minimisation of the dose applied, controlled release... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2016 |
URL: http://orgprints.org/32313/1/2016_IOBCCollier.pdf |
| |
|
|
|
