Plant Disease Management Practices of Traditional Farmers

Thurston, H. David

doi:10.1094/pd-74-0096

Cited by 53 publications

(22 citation statements)

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“…This was observed in Mesanu tabia and other places in the Eastern and Southern zones of the region, where farmers have almost stopped growing onions because of bulb rot, a fungal disease. In agreement with previous findings (Thurston 1990(Thurston , 1992Thurston et al 1995), we documented extensive knowledge of disease management among local farmers. Even though they do not know the causal agents, they use management practices that should be taken into consideration in the development of improved management techniques.…”

Section: Reasons Why Farmers Continue To Cultivate Susceptible Varietiessupporting

confidence: 92%

Farmers’ knowledge of crop diseases and control strategies in the Regional State of Tigrai, northern Ethiopia: implications for farmer–researcher collaboration in disease management

Kiros-Meles¹,

Abang

2008

Agric Hum Values

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Differences in perceptions and knowledge of crop diseases constitute a major obstacle in farmerresearcher cooperation, which is necessary for sustainable disease management. Farmers' perceptions and management of crop diseases in the northern Ethiopian Regional State of Tigrai were investigated in order to harness their knowledge in the participatory development of integrated disease management (IDM) strategies. Knowledge of disease etiology and epidemiology, cultivar resistance, and reasons for the cultivation of susceptible cultivars were investigated in a total of 12 tabias (towns) in ten weredas (districts)

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Section: Reasons Why Farmers Continue To Cultivate Susceptible Varietiessupporting

confidence: 92%

Farmers’ knowledge of crop diseases and control strategies in the Regional State of Tigrai, northern Ethiopia: implications for farmer–researcher collaboration in disease management

Kiros-Meles¹,

Abang

2008

Agric Hum Values

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“…A savings of at least one fungicide application per year appears achievable when spring pruning is conducted thoroughly and slightly delayed compared with growers' current practices.Cultural disease management practices are actions that involve the manipulation of the plant, its components, crop refuse, and the environment to reduce or prevent disease (5,26,31,34). Plant Dis.…”

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confidence: 99%

“…Cultural disease management practices are actions that involve the manipulation of the plant, its components, crop refuse, and the environment to reduce or prevent disease (5,26,31,34). In hop (Humulus lupulus L.), cultural practices are an important component of integrated management of the two most important foliar diseases of this crop: downy mildew, caused by Pseudoperonospora humuli; and powdery mildew, caused by Podosphaera macularis (21,22,27,29).…”

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confidence: 99%

Association of Spring Pruning Practices with Severity of Powdery Mildew and Downy Mildew on Hop

et al. 2012

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spring pruning practices with severity of powdery mildew and downy mildew on hop. Plant Dis. 96:1343-1351.Downy mildew (caused by Pseudoperonospora liumuli) and powdery mildew (caused by Podosphaera macularis) are important diseases of hop in the Pacific Northwest United States, and cultural practices may affect the severity of both diseases. The association of spring pruning quality and timing with severity of downy mildew and powdery mildew was assessed through analysis of survey data collected from commercial hop yards in Oregon and Washington. Among 149 hop yards surveyed, the most common pruning method was chemical desiccation (48% of yards), mechanical pruning (23%), or a combination of these practices (15%). The quality of pruning was assessed using a threecategory ordinal scale ("excellent", "moderate", or "poor") based on the amount of foliage remaining on plants following pruning. Excellent pruning quality was attained more often in yards pruned twice (74.6 to 82.1 % of yards) versus once (33.8% of yards), independent of pruning method. Seasonal severity of downy mildew in Oregon increased approximately twofold with reduction in pruning quality from excellent to moderate to poor. Pruning quality was not significantly related to levels of powdery mildew on leaves or cones in Oregon. Under more severe disease pressure in Washington, however, seasonal severity of powdery mildew on leaves and the incidence of cones with powdery mildew were significantly greater in yards that had poor pruning compared with excellent pruning. Moreover, yards that had excellent pruning quality received, on average, 1.1 to 1.5 fewer fungicide applications per season for downy mildew or powdery mildew compared with yards that had moderate or poor pruning quahty. This savings was associated with delayed initiation of the first application by 7.5 to 14.2 days in yards with excellent pruning quality. Replicated experiments in commercial yards in Oregon quantified the effect of delaying pruning timing 5 to 21 days compared with growers' standard practices on the diseases and yield. Downy mildew suppression by delayed pruning was dependent on cultivar and year of sampling, being significantly reduced fivefold only in 'Willamette' in 2007. Severity of powdery mildew and cone yield was similar between plots that received the delayed or standard pruning timing treatments. Collectively, these studies emphasize that early spring sanitation measures are associated with reduced primary inoculum and are critically important for managing both downy mildew and powdery mildew. A savings of at least one fungicide application per year appears achievable when spring pruning is conducted thoroughly and slightly delayed compared with growers' current practices.Cultural disease management practices are actions that involve the manipulation of the plant, its components, crop refuse, and the environment to reduce or prevent disease (5,26,31,34). In hop (Humulus lupulus L.), cultural practices are an important component of integrated management of the t...

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“…These rotations, widely practiced in precolonial Peru, were discontinued after the arrival of the Spaniards, who considered rotation and fallow practices to be senseless. The original practices are only continued today by some isolated communities in the Andes (100,101).…”

Section: Rotation Of Cropsmentioning

confidence: 99%

Nematode Management in Sustainable and Subsistence Agriculture

Bridge

1996

Annu. Rev. Phytopathol.

104

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In small-scale, subsistence agriculture in the tropics and the subtropics, traditional farming practices have evolved that provide a sustainable means of reducing the incidence and damage caused by pests including nematodes. Other newer, cultural and low-input practices can also be successfully introduced in small-scale farming. In sustainable and subsistence farming systems, nematodes and some other pests can be managed by integrating different farming practices into four strategies: preventing the introduction and spread of nematodes; using direct, nonchemical, cultural and physical control methods; encouraging naturally occurring biological control agents; and maintaining or enhancing the biodiversity inherent in multiple cropping and multiple cultivar traditional farming systems to increase the available resistance or tolerance to nematodes.

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Plant Disease Management Practices of Traditional Farmers

Cited by 53 publications

References 0 publications

Farmers’ knowledge of crop diseases and control strategies in the Regional State of Tigrai, northern Ethiopia: implications for farmer–researcher collaboration in disease management

Farmers’ knowledge of crop diseases and control strategies in the Regional State of Tigrai, northern Ethiopia: implications for farmer–researcher collaboration in disease management

Association of Spring Pruning Practices with Severity of Powdery Mildew and Downy Mildew on Hop

Nematode Management in Sustainable and Subsistence Agriculture

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