scholarly journals Identification of Distribution the Pineapple Mealybug Wilt Disease in the Pineapple plant in North Tapanuli

2017 ◽  
Vol 2 (5) ◽  
pp. 2473-2480
Author(s):  
Arta Junita Hutahayan
Keyword(s):  
Wilt Disease ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

scholarly journals First report of Pineapple mealybug wilt‐associated virus‐1 and ‐2 associated with mealybug wilt disease of pineapple in Mauritius

2021 ◽  
Vol 44 (1) ◽  
Author(s):  
A. Gungoosingh‐Bunwaree ◽  
F. Maudarbaccus ◽  
D. Knierim ◽  
P. Margaria ◽  
S. Winter ◽  
...  
Keyword(s):  
Wilt Disease ◽  
First Report ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

scholarly journals Spatial and Temporal Incidences of Pineapple mealybug wilt-associated viruses in Pineapple Planting Blocks

Plant Disease ◽  
2010 ◽  
Vol 94 (2) ◽  
pp. 196-200 ◽  
Author(s):  
D. M. Sether ◽  
W. B. Borth ◽  
M. J. Melzer ◽  
J. Hu
Keyword(s):  
Ananas Comosus ◽  
Ratoon Crop ◽  
Virus Incidence ◽  
Central Regions ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug ◽  
Fruit Harvest ◽  
Propagation Material

A complex of Pineapple mealybug wilt-associated viruses (PMWaVs) that can infect pineapple (Ananas comosus) is correlated with reduced yields and mealybug wilt of pineapple. The incidences of PMWaV-1 and PMWaV-2 at planting, fruit harvest, the beginning of the ratoon crop, and ratoon fruit harvest were determined for end, side, and central regions of planting blocks in eight commercial fields. Differences in virus incidence for the three regions at ratoon harvest were highly significant (P = 0.0018). Central regions of planting blocks had lower virus incidences at the time of ratoon fruit harvest. Collection of propagation material from the central regions of planting blocks will help to minimize PMWaV incidence in fields planted with this material.

scholarly journals Probing behavior of Dysmicoccus brevipes mealybug in pineapple plants1

2016 ◽  
Vol 46 (4) ◽  
pp. 458-463
Author(s):  
Lenira Viana Costa Santa-Cecília ◽  
◽  
Ernesto Prado ◽  
Brígida Souza ◽  
Keyword(s):  
Insect Vector ◽  
Recording Time ◽  
Defense Strategies ◽  
Phenolic Contents ◽  
Probing Behavior ◽  
Epg Technique ◽  
Dysmicoccus Brevipes ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

ABSTRACT Differences in susceptibility to viruses in plants may be partially explained by the insect vector probing behavior and by the presence of phenolic compounds, which are often associated with defense strategies. This study aimed at detecting barriers that may difficult the probing activity of the Dysmicoccus brevipes (Pseudococcidae) pineapple mealybug, a vector of the pineapple mealybug wilt-associated virus, as well as evaluating the phenolic content of plants, in order to verify any possible relationship with the probing behavior, by using the electrical penetration graphs (EPG) technique. Seedlings of 'Smooth Cayenne' and 'Pérola' pineapple cultivars were used in the experiments. Only 28 % and 21 % of the mealybugs reached the phloem of the 'Smooth Cayenne' and 'Pérola' cultivars, respectively, over 16 h of recording, with an average of 9 h to reach the phloem vessels. The xylem phase was extended in both cultivars and represented approximately 31 % ('Smooth Cayenne') and 44 % ('Pérola') of the recording time. The phenolic contents of both cultivars were similar.

PINEAPPLE MEALYBUG WILT ASSOCIATED VIRUS AND MEALYBUG WILT OF PINEAPPLE

2005 ◽  
pp. 209-212 ◽  
Author(s):  
J.S. Hu ◽  
D.M. Sether ◽  
M.J. Metzer ◽  
E. Pérez ◽  
A. Gonsalves ◽  
...  
Keyword(s):  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

Further genomic characterization of pineapple mealybug wilt-associated viruses using high-throughput sequencing

2020 ◽  
Vol 45 (1) ◽  
pp. 64-72 ◽  
Author(s):  
James C. Green ◽  
Maher A. Rwahnih ◽  
Alejandro Olmedo-Velarde ◽  
Michael J. Melzer ◽  
Islam Hamim ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Sequencing ◽  
Genomic Characterization ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

scholarly journals Analysis of Patterns of Pineapple Mealybug Wilt Disease in Sri Lanka

Plant Disease ◽  
1998 ◽  
Vol 82 (8) ◽  
pp. 885-890 ◽  
Author(s):  
G. Hughes ◽  
S. Samita
Keyword(s):  
Sri Lanka ◽  
Probability Distributions ◽  
Disease Incidence ◽  
Wilt Disease ◽  
Statistical Probability ◽  
Factors Affecting ◽  
Mealybug Wilt ◽  
Field Experimentation ◽  
Pineapple Mealybug Wilt ◽  
Made In

Mealybug wilt disease of pineapple has a complicated etiology, which is not yet fully understood. As a result, assessments of the disease in the field, such as those that are made in the context of evaluation of disease control methods, are usually based on symptomatology. Field assessments, based on symptoms of mealybug wilt disease, were made in the Kurunegala and Gampaha districts of Sri Lanka. These data were fitted to statistical probability distributions as a method of summarizing the spatial pattern of disease incidence. Most plots showed aggregated patterns of diseased plants, but there were some exceptions. Summarizing patterns of disease incidence by means of fitting statistical probability distributions provides a basis for significance testing in cases where factors affecting disease incidence are the subject of field experimentation. Some examples of this methodology are given.

scholarly journals Molecular diagnosis of Fusarium guttiforme and Pineapple mealybug wilt-associated virus

2014 ◽  
Vol 8 (S4) ◽  
Author(s):  
Lorena Carnielli ◽  
Walkíria Andrade Amorim ◽  
Aline Vaz ◽  
Patricia Machado Bueno Fernandes ◽  
José Aires Ventura
Keyword(s):  
Molecular Diagnosis ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

CHARACTERIZATION AND CONTROL OF PINEAPPLE MEALYBUG WILT ASSOCIATED AMPELOVIRUSES

2006 ◽  
pp. 23-27 ◽  
Author(s):  
E.P. Perez ◽  
D.M. Sether ◽  
M.J. Melzer ◽  
J.L. Busto ◽  
C. Nagai ◽  
...  
Keyword(s):  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug ◽  
And Control

scholarly journals Differentiation, Distribution, and Elimination of Two Different Pineapple mealybug wilt-associated viruses Found in Pineapple

Plant Disease ◽  
2001 ◽  
Vol 85 (8) ◽  
pp. 856-864 ◽  
Author(s):  
D. M. Sether ◽  
A. V. Karasev ◽  
C. Okumura ◽  
C. Arakawa ◽  
F. Zee ◽  
...  
Keyword(s):  
Agricultural Research ◽  
The United States ◽  
United States Department ◽  
Rt Pcr ◽  
Apical Bud ◽  
The World ◽  
Pcr Assays ◽  
Mealybug Wilt ◽  
Pineapple Mealybug Wilt ◽  
Pineapple Mealybug

Surveys for Pineapple mealybug wilt-associated virus-1 (PMWaV-1) and PMWaV-2 were conducted on pineapple samples from Hawaii and around the world. Tissue blot immunoassays (TBIAs) with two different monoclonal antibodies (MAb) specific to either PMWaV-1 or PMWaV-2 indicated that both closteroviruses are widely distributed throughout the pineapple-growing areas of the world. In the worldwide survey, PMWaV-1 was found in 80% of the mea-lybug wilt of pineapple (MWP)-symptomatic and 78% of the asymptomatic pineapple plants tested. A subset of plants was tested for PMWaV-2; 100% of the symptomatic plants and 12% of the asymptomatic plants were positive for this virus. A reverse transcription-polymerase chain reaction (RT-PCR) assay was developed to differentiate between PMWaV-1 and PMWaV-2. Oligonucleotide primers were designed using distinct regions of the HSP 70 homolog genes of the two viruses. PMWaV-specific RT-PCR assays and TBIAs were used to screen the pineapple accessions maintained at the United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for PMWaV infection; 73% of the accessions were found infected with at least one PMWaV. Pineapple accessions found PMWaV-free were challenged with viruliferous mealybugs to test for immunity to PMWaV-1. No immune germ plasm was identified. Potential alternative virus hosts were screened for infection with virus-specific RT-PCR assays and TBIAs and were also challenged with viruliferous mealybugs. No alternate hosts of PMWaV-1 or PMWaV-2 were identified. PMWaV-1 infection was eliminated through axillary and apical bud propagation from infected crowns. Strategies to manage MWP are discussed.

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