scholarly journals The Potential Distribution of the Potato Tuber Moth (Phthorimaea Operculella) Based on Climate and Host Availability of Potato

Agronomy ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 12 ◽  
Author(s):  
Jae-Min Jung ◽  
Sang-Geui Lee ◽  
Kwang-Ho Kim ◽  
Sung-Wook Jeon ◽  
Sunghoon Jung ◽  
...  
Keyword(s):  
Climate Change ◽  
Potato Tuber ◽  
Host Plant ◽  
Potential Distribution ◽  
Potato Production ◽  
Plant Production ◽  
Potato Seed ◽  
Potato Tuber Moth ◽  
Climatic Suitability ◽  
Plant Availability

This study evaluated the potential distribution of the potato tuber moth. This species severely impacts global potato production, especially in China and India, which have the world’s largest potato production. We developed two indices considering host plant availability and production in addition to climatic suitability, which was simulated using the CLIMEX model. Thus, three different indices were used to project potential distribution of the potato tuber moth under a climate change scenario: (1) climatic suitability (ecoclimatic index (EI)) (EIM), (2) climatic suitability combined with host plant availability (EIN1), and (3) climatic suitability combined with host plant production (EIN2). Under the current climate, EIM was high in southern India and central to southern China, while EIN1 and EIN2 were approximately 38% and 20% lower than EIM, respectively. Under the Special Report on Emissions Scenario A1B, the potato tuber moth would probably not occur in India, but its distribution could be extended to the north, reaching N47°. The areas with the highest climatic suitability by potato tuber moth based on three indices were Sichuan and Karnataka in response to climate change. These areas require adequate pest control, such as prevention of spread through transport of potato seed or by using cold storage facilities.

scholarly journals Changes in Spatiotemporal Distribution of the Potato Tuber Moth (Phthorimaea operculella) in South Korea in Response to Climate Change Determined Using a Field Survey

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1270
Author(s):  
Dae-hyeon Byeon ◽  
Sunghoon Jung ◽  
Sang-Guei Lee ◽  
Sung-Wook Jeon ◽  
Min Kwon ◽  
...  
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Potato Tuber ◽  
Field Survey ◽  
Control Strategies ◽  
Potato Production ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Severe Damage ◽  
The 1960S

Potato tuber moth (Phthorimaea operculella), one of the leading potato-damaging pests in the world, has caused severe damage to potato production in South Korea after its introduction in the 1960s. This study surveyed the field occurrence of potato tuber moth in various sites in South Korea and used the results to validate the CLIMEX model, which spatiotemporally evaluated the potential distribution of potato tuber moths in response to climate change. The potato tuber moths were predicted to appear throughout the country, consistent with the results obtained for potato tuber moths in 96% of the field survey area. In addition, the climatic suitability of potato tuber moths will remain high due to climate change, suggesting a high risk for damage to seasonal potato production from seeding to harvesting. This spatiotemporal assessment of potato tuber moth distribution is expected to aid in establishing control strategies optimized based on time and place.

scholarly journals Development of Bt-cry5 Insect-resistant Potato Lines 'Spunta-G2' and 'Spunta-G3'

HortScience ◽  
2002 ◽  
Vol 37 (7) ◽  
pp. 1103-1107 ◽  
Author(s):  
D.S. Douches ◽  
W. Li ◽  
K. Zarka ◽  
J. Coombs ◽  
W. Pett ◽  
...  
Keyword(s):  
Potato Tuber ◽  
Colorado Potato Beetle ◽  
Insect Pest ◽  
Transgenic Potato ◽  
Potato Production ◽  
The United States ◽  
Field Trials ◽  
Potato Tuber Moth ◽  
Detached Leaf ◽  
Potato Beetle

The potato tuber moth (Phthorimaea operculella Zeller) is the primary insect pest of cultivated potato (Solanum tuberosum L.) in tropical and subtropical regions, causing both foliar and tuber damage. In contrast, the Colorado potato beetle (Leptinotarsa decemlineata Say) is the most important insect pest in the northern potato production latitudes. The codon-modified Bacillus thuringiensis Bt-cry5 gene (revised nomenclature cry1IaI), specifically toxic to Lepidoptera and Coleoptera, was transformed into cultivar Spunta using an Agrobacterium vector to provide resistance to both potato tuber moth and Colorado potato beetle. The Bt-cry5 gene was placed downstream from the constitutive CaMV35S promoter. Two transgenic 'Spunta' clones, G2 and G3, produced high levels of mortality in first instars of potato tuber moth in detached-leaf bioassays (80% to 83% mortality), laboratory tuber tests (100% mortality), and field trials in Egypt (99% to 100% undamaged tubers). Reduced feeding by Colorado potato beetle first instars was also observed in detached-leaf bioassays (80% to 90% reduction). Field trials in the United States demonstrated that the horticultural performance of the two transgenic lines was comparable to 'Spunta'. These Bt-cry5 transgenic potato plants with high potato tuber moth resistance have value in integrated pest management programs.

scholarly journals Field Survey and Monitoring of Potato Tuber Moth (Phthorimaea operculella)(Zeller)(Lepidoptera: Gelechiidae)

2006 ◽  
Vol 27 ◽  
pp. 157-160
Author(s):  
DB Tiwari ◽  
RB Thapa ◽  
SM Shrestha ◽  
SL Joshi
Keyword(s):  
Potato Tuber ◽  
Field Survey ◽  
Potato Crop ◽  
Insect Pest ◽  
Potato Production ◽  
First Record ◽  
Phthorimaea Operculella ◽  
Kathmandu Valley ◽  
Potato Tuber Moth ◽  
And Storage

Potato tuber moth (PTM), Phthorimaea operculella (Zeller) is a major pest of stored potato. Field survey was conducted to know the effect of this pest on potato production and storage under farmers' conditions in the Kathmandu valley and remote district Rolpa during 2005. Ninety farmers (40 in the Kathmandu valley and 50 in Rolpa) were interviewed in semi-structured questionnaires and PTM was also monitored using sex pheromone. Survey and monitoring revealed that PTM (insect pest) and late blight (disease) were the major problems of potato crop in both the areas. Maximum of 69 moths per week were collected in one set of pheromone trap in Kathmandu and 76 moths trapped within five days of trap setting in Rolpa. That was the first record, authentic evidence to clarify farmers’ confusion in Rolpa district about the presence of P. operculella in potato growing areas. In the Kathmandu valley, 95% of respondent farmers were aware of this pest and 80% farmers relied on chemical pesticides to manage P. operculella on stored potato. However, only 4% of the respondent farmers in Rolpa were aware of this pest. Therefore, its management is necessary for healthy potato production in the field and storage under farmers’ conditions in Nepal. Key words : Phthorimaea operculella, field survey and monitoring J. Inst. Agric. Anim. Sci. 27:157-160 (2006)

scholarly journals Provisioning forest and conservation science with high-resolution maps of potential distribution of major European tree species under climate change

2021 ◽  
Vol 78 (2) ◽  
Author(s):  
Debojyoti Chakraborty ◽  
Norbert Móricz ◽  
Ervin Rasztovits ◽  
Laura Dobor ◽  
Silvio Schueler
Keyword(s):  
Climate Change ◽  
Tree Species ◽  
Potential Distribution ◽  
Input Data ◽  
Decision Support Tool ◽  
Forest Trees ◽  
Climatic Suitability ◽  
Support Tool ◽  
Link Type ◽  
Planting Material

Abstract •Key message We developed a dataset of the potential distribution of seven ecologically and economically important tree species of Europe in terms of their climatic suitability with an ensemble approach while accounting for uncertainty due to model algorithms. The dataset was documented following the ODMAP protocol to ensure reproducibility. Our maps are input data in a decision support tool “SusSelect” which predicts the vulnerability of forest trees in climate change and recommends adapted planting material. Dataset access is at https://doi.org/10.5281/zenodo.3686918. Associated metadata are available at https://metadata-afs.nancy.inra.fr/geonetwork/srv/fre/catalog.search#/metadata/fe79a36d-6db8-4a87-8a9f-c72a572b87e8.

scholarly journals First Report of Occurrence of Potato Tuber Necrotic Ringspot Disease in Greece

Plant Disease ◽  
1999 ◽  
Vol 83 (5) ◽  
pp. 488-488 ◽  
Author(s):  
F. Bem ◽  
C. Varveri ◽  
I. Eleftheriadis ◽  
D. Karafyllidis
Keyword(s):  
Potato Tuber ◽  
Potato Production ◽  
Enzyme Linked Immunosorbent Assay ◽  
Potato Seed ◽  
Northern Greece ◽  
Original Seed ◽  
Commercial Potato ◽  
Polymerase Chain ◽  
Southern Greece ◽  
Das Elisa

Potato tuber necrotic ringspot disease (PTNRD), caused by potato Y potyvirus isolate NTN (PVYNTN) of the N virus strain group, was first described in Hungary in 1980. It has spread throughout Europe, with the most recent reports from Portugal and Italy in 1997 to 1998 (1). Superficial necrotic ringspot areas on tubers, typical of PTNRD, were first observed in commercial potato fields of the Nevrokopi region in northern Greece in 1994. Affected cultivars included Timate and, to a lesser extent Spunta, the original seed of which came from the Netherlands. PVY was identified from all tubers tested by indexing on Nicotiana tabacum and subsequent testing of the plants by double antibody sandwich-enzyme-linked immunosorbent assay (DAS-ELISA). The potato seed lots were rejected by the local authorities. PTNRD reappeared in the same area in 1998 in a more aggressive manner. Cultivar Hermes, imported from Scotland, was most affected, with very severe symptoms in 80% of the tubers. Symptoms appeared in early September, 40 days after defoliation of the plants. Other cultivars were affected at lower rates; cv. Spunta showed typical symptoms and cvs. Fabola, Santana, and Irvila exhibited atypical cracks and blisters. In all cases, PVY was isolated in N. tabacum and its presence confirmed by DAS-ELISA. Immunocapture-reverse transcription-polymerase chain reaction with specific PVYNTN primers (2) detected the characteristic 835-bp product in all cultivars tested. The incidence of PTNRD seems to be expanding in northern Greece, where it has become a threat to potato production. PTNRD symptoms were also observed in southern Greece (Ahaia) in experimental “crossing” fields of seed stocks. In this case, the disease seems to have spread especially in cv. Marfona. References: (1) L. Tomassoli et al. Plant Dis. 82:350, 1998. (2) H. L. Wiedemann and E. Maiss. Z. Pflanzenkrankh. Pflanzenschutz 103:337, 1996.

Impacts of climate change and host plant availability on the global distribution of Brontispa longissima (Coleoptera: Chrysomelidae)

2019 ◽  
Vol 76 (1) ◽  
pp. 244-256 ◽  
Author(s):  
Ya Zou ◽  
Xuezhen Ge ◽  
Siwei Guo ◽  
Yuting Zhou ◽  
Tao Wang ◽  
...  
Keyword(s):  
Climate Change ◽  
Host Plant ◽  
Global Distribution ◽  
Plant Availability ◽  
Impacts Of Climate Change

scholarly journals Potato Transformation to Combine Natural and Engineered Resistance for Controlling Tuber Moth

HortScience ◽  
1998 ◽  
Vol 33 (6) ◽  
pp. 1053-1056 ◽  
Author(s):  
D.S. Douches ◽  
A.L. Westedt ◽  
K. Zarka ◽  
B. Schroeter ◽  
E.J. Grafius
Keyword(s):  
Potato Tuber ◽  
Host Plant ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Glandular Trichomes ◽  
Natural Resistance ◽  
Central Component ◽  
Potato Tuber Moth ◽  
Transgenic Lines ◽  
Bt Gene

Potato tuber moth (Phthorimaea operculella Zeller) is a highly destructive pest of the cultivated potato (Solanum tuberosum L.) in the tropics and subtropics and causes significant damage to both leaves and tubers. Development of host plant resistance is a central component of an integrated pest management (IPM) program for potato tuber moth. The purpose of this research was to augment natural resistance by transforming potato with a codon-modified CryV-Bt gene using Agrobacterium-mediated techniques. `Lemhi Russet' potato and two clones with different host plant resistance mechanisms, USDA8380-1 (leaf leptines) and L235-4 (glandular trichomes), were transformed with the CryV-Bt gene. Gene integration of regenerated plants was confirmed by polymerase chain reactions and Southern analyses; gene transcription was evaluated by northern analyses. Detached leaf bioassays showed that high levels of Bt expression occurred in the CryV-Bt transgenic lines (`Lemhi Russet' and L235-4), providing up to 96% control of potato tuber moth larvae, compared with 3% and 54% control in L235-4 and USDA8380-1, respectively. These transgenic lines can be used for breeding purposes to develop cultivars for (and eventual introduction into) IPM systems.

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