Commodity program flexibility and U.S. potato acreage

1992 ◽  
Vol 69 (10) ◽  
pp. 677-690
Author(s):  
Hsiang-Tai Cheng ◽  
Michele C. Marra ◽  
James D. Leiby
Keyword(s):  
Potato Acreage

scholarly journals Potential Distribution and the Risks of Bactericera cockerelli and Its Associated Plant Pathogen Candidatus Liberibacter Solanacearum for Global Potato Production

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 298
Author(s):  
Jing Wan ◽  
Rui Wang ◽  
Yonglin Ren ◽  
Simon McKirdy
Keyword(s):  
At Risk ◽  
South America ◽  
Plant Pathogen ◽  
Potato Production ◽  
Economic Losses ◽  
Bactericera Cockerelli ◽  
Ecological Niche Models ◽  
Potato Acreage ◽  
Candidatus Liberibacter Solanacearum ◽  
Candidatus Liberibacter

The tomato potato psyllid (TPP), Bactericera cockerelli, is a psyllid native to North America that has recently invaded New Zealand and Australia. The potential for economic losses accompanying invasions of TPP and its associated bacterial plant pathogen Candidatus Liberibacter solanacearum (CLso), has caused much concern. Here, we employed ecological niche models to predict environments suitable for TPP/CLso on a global scale and then evaluated the extent to which global potato cultivation is at risk. In addition, at a finer scale the risk to the Australian potato acreage was evaluated. A total of 86 MaxEnt models were built using various combinations of settings and climatic predictors, and the best model based on model evaluation metrics was selected. Climatically suitable habitats were identified in Eurasia, Africa, South America, and Australasia. Intersecting the predicted suitability map with land use data showed that 79.06% of the global potato cultivation acreage, 96.14% of the potato production acreage in South America and Eurasia, and all the Australian potato cropping areas are at risk. The information generated by this study increases knowledge of the ecology of TPP/CLso and can be used by government agencies to make decisions about preventing the spread of TPP and CLso across the globe.

United states potato acreage 3.3 per cent above year ago

1930 ◽  
Vol 7 (8) ◽  
pp. 239-240
Author(s):  
C. D. Stevens ◽  
C. D. Burmeister
Keyword(s):  
United States ◽  
Potato Acreage

scholarly journals Economic Impact of Introducing Rotations on Long Island Potato Farms

1984 ◽  
Vol 13 (2) ◽  
pp. 221-228 ◽  
Author(s):  
Sheryl S. Lazarus ◽  
Gerald B. White
Keyword(s):  
New York ◽  
Linear Programming ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Programming Model ◽  
Long Island ◽  
Crop Rotations ◽  
Environmental Concerns ◽  
Pesticide Use ◽  
Potato Acreage

Potatoes have been grown continuously on many Long Island (New York) fields. Environmental concerns have raised questions about the continued usage of this practice. A farm-level linear programming model was used to investigate the economic impacts of crop rotations which result in reduced potato acreage. Crop rotations (an Integrated Pest Management tactic) reduced total pesticide use, but also reduced returns above variable costs as successively stringent rotation requirements were forced into the solution. The crop rotations which caused the least effect on income were identified.

Studies on Wheat Bulb Fly (Leptohylemyia coarctata (Fall.)). IV.—The Distribution of Damage in England and Wales in 1953

1957 ◽  
Vol 48 (2) ◽  
pp. 447-457 ◽  
Author(s):  
H. C. Gough
Keyword(s):  
Winter Wheat ◽  
Spring Wheat ◽  
Circumstantial Evidence ◽  
Financial Loss ◽  
The West ◽  
Potato Acreage ◽  
West Side ◽  
Eastern Side ◽  
The Republic ◽  
The Cost

SummaryIt is estimated that in 1953, as a result of attack by Wheat Bulb Fly, Leptohylemyia coarctata (Fall.), 59,000 acres of wheat were re-drilled and 58,000 acres were patched with spring-sown wheat; another 85,000 acres were affected without any action being taken by the farmer. The cost of new seed and the reduction of yield of spring wheat as compared with winter wheat represent a minimum financial loss of about £1,200,000. With the aid of maps it is shown that the distribution of damage is similar to the distribution of wheat and to the area with less than 30 in., rainfall annually. In districts where over 5 per cent. of the combined crops and grass acreage is in potatoes, there is a tendency for the amount of damage by Wheat Bulb Fly to increase with increasing potato acreage.It is tentatively suggested on circumstantial evidence that high rainfall on the west side of the country is partly responsible for the absence there of damage by Wheat Bulb Fly. Many of the variations in the distribution of damage on the eastern side of the country could be accounted for by differences in cropping.In Scotland, the distribution of the fly is also confined to the eastern side. There are a few records of the fly in the Republic of Ireland.

scholarly journals The impact of the mandatory seed law on Maine potato acreage, yield and price

1991 ◽  
Vol 68 (6) ◽  
pp. 381-390 ◽  
Author(s):  
J. F. Guenthner ◽  
E. S. Plissey ◽  
A. E. Levi ◽  
L. D. Makus
Keyword(s):  
Potato Acreage ◽  
Maine Potato ◽  
The Impact

scholarly journals Evaluation of QoI Fungicide Application Strategies for Managing Fungicide Resistance and Potato Early Blight Epidemics in Wisconsin

Plant Disease ◽  
2008 ◽  
Vol 92 (4) ◽  
pp. 561-568 ◽  
Author(s):  
N. Rosenzweig ◽  
Z. K. Atallah ◽  
G. Olaya ◽  
W. R. Stevenson
Keyword(s):  
Fungicide Resistance ◽  
Early Blight ◽  
Field Experiments ◽  
Management Strategies ◽  
Alternaria Solani ◽  
The United States ◽  
Nucleotide Polymorphisms ◽  
Mutant Type ◽  
Potato Acreage

Potato early blight (Alternaria solani) is a yield-limiting disease and control depends primarily on multiple fungicide applications. Azoxystrobin, registered in the United States in 1999, initially provided outstanding early blight control. Within 3 years, approximately 80% of the total potato acreage was being treated with azoxystrobin and other quinone outside inhibitor (QoI), fungicides registered subsequently. Alternaria solani isolates with decreased in vitro sensitivity to azoxystrobin were detected in Wisconsin during 2001. Field experiments were conducted in 2001 to 2003 to evaluate season-long fungicide programs and test fungicide resistance management strategies. The fungicide program recommended to growers at that time, which consisted of three applications of azoxystrobin for weeks 1, 3, and 5 alternated with applications of chlorothalonil at label recommended rates, was effective in controlling early blight when conditions were conducive to disease development. Mean sensitivity in vitro of A. solani isolates from fungicide efficacy field experiments in 2001 to 2003 was numerically highest for isolates from the untreated control plots, chlorothalonil-alone plots, or plots treated with three applications of azoxystrobin alternated with chlorothalonil compared with other treatments tested. Three single-nucleotide polymorphisms (SNPs) can cause the F129L substitution (TTC to TTA, CTC, or TTG) that results in decreased sensitivity to azoxystrobin of A. solani. The TTA mutant was the most frequently recovered mutant type in the field experiments. The frequency of recovery of wild-type isolates in experiments was 22% in 2001, 4% in 2002, and 22% in 2003.

scholarly journals Potato Cultivars from the Mexican National Program: Sources and Durability of Resistance Against Late Blight

2002 ◽  
Vol 92 (7) ◽  
pp. 688-693 ◽  
Author(s):  
Niklaus J. Grünwald ◽  
Mateo A. Cadena Hinojosa ◽  
Oswaldo Rubio Covarrubias ◽  
Antonio Rivera Peña ◽  
John S. Niederhauser ◽  
...  
Keyword(s):  
Late Blight ◽  
Genetic Background ◽  
Potato Late Blight ◽  
Field Resistance ◽  
Potato Acreage ◽  
Land Race ◽  
National Potato ◽  
Using Data ◽  
Selection Of ◽  
Durability Of Resistance

The Mexican National Potato Program has produced several cultivars with high levels of field resistance. We evaluated the durability of resistance to potato late blight of a selection of 12 such cultivars using data from 1960 to the present. Data were extracted from the field notebooks located in the archives of the Mexican National Potato Program in the John S. Niederhauser Library in Toluca, Mexico. There was a trend indicating that field resistances to potato late blight of Mexican cultivars released between 1965 to 1999 were durable. At least two of the cultivars, namely ‘Sangema’ and ‘Tollocan’, have been grown on at least 4 to 5% of the potato acreage and over long periods of time without decay in levels of field resistance. Pedigrees of the 12 cultivars indicate that most of the field resistance was introgressed from Solanum demissum. Field resistance might also be derived from commonly grown land-race cultivars such as ‘Amarilla de Puebla’ and ‘Leona’. These have been grown in Mexico since about the 1780s. They have the appearance of S. andigena-derived material but their genetic background is unknown.

scholarly journals Differential susceptibility to insecticides by Leptinotarsa decemlineata [Coleoptera: Chrysomelidae] populations from western Canada

2005 ◽  
Vol 82 (3) ◽  
pp. 113-121 ◽  
Author(s):  
C. Noronha ◽  
G.M. Duke ◽  
J.M. Chinn ◽  
M.S. Goettel
Keyword(s):  
Leptinotarsa Decemlineata ◽  
Resistance Management ◽  
Differential Susceptibility ◽  
Management Program ◽  
Western Canada ◽  
Potato Acreage ◽  
Azinphos Methyl ◽  
Intermediate Resistance ◽  
Susceptible Populations ◽  
Two Populations

The susceptibility of Colorado potato beetles (Leptinotarsa decemlineata) (CPB) from three provinces in western Canada was measured using a filter paper bioassay to substantiate the reported insecticide resistance by the beetle in Manitoba, and to compare the situation there to beetle populations from Saskatchewan and Alberta. Susceptibility of beetles was measured against five insecticides: the organophosphates, azinphos-methyl (Guthion), and methamidophos (Monitor); the pyrethroid, permethrin (Ambush); the organochlorine, endosulfan (Endosulfan); and the carbamate, carbaryl (Sevin). All 12 populations tested from Manitoba were found to have resistance to one or more of the insecticides. All populations were classified as either having resistance or intermediate resistance to permethrin; two of the populations were classified as having resistance to azinphos-methyl and three to methamidophos. Two of four populations from Saskatchewan were classified as having intermediate resistance to azinphos-methyl and methamidophos. Intermediate resistance to permethrin was recorded in 12 of the 13 populations from Alberta, with only one being highly susceptible. Two populations showed evidence of intermediate resistance to azinphos-methyl and three to methamidophos. In all three provinces, survival rate from different egg masses within the susceptible populations ranged from 0-100%, indicating the presence of individuals with either resistance, intermediate or high susceptibility within these populations. With the expanding potato acreage in western Canada and the detection of the CPB populations with resistance to insecticides, a resistance management program must be implemented to prevent the rapid selection of resistant populations.

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