scholarly journals Biorational insecticides for control of the tomato potato psyllid

2013 ◽  
Vol 66 ◽  
pp. 333-340 ◽  
Author(s):  
N. Jorgensen ◽  
R.C. Butler ◽  
J. Vereijssen
Keyword(s):  
Insect Pest ◽  
Field Trials ◽  
Control Measures ◽  
Potato Psyllid ◽  
Control Methods ◽  
Bactericera Cockerelli ◽  
Insect Pest Control ◽  
Beneficial Insects ◽  
Potato Crops ◽  
Laboratory Bioassays

Since its discovery in 2006 the tomato potato psyllid Bactericera cockerelli (ulc) (TPP) has been considered a significant pest of solanaceous crops in New Zealand resulting in an intensification of insect pest control measures often with the use of broadspectrum insecticides In the search for more sustainable control methods in outdoor potato crops several biorational insecticides were tested in laboratory bioassays to assess their effects on TPP behaviour and mortality The products tested were Organic JMS StyletOil Excel Oil EcoOil Neem 600 WP and Sap Sucker Plus Given the efficacy of JMS Stylet Oil Sap Sucker Plus and Excel Oil at reducing TPP numbers and their probing/feeding deterrent qualities these products are now being tested in a field trial The impacts of the tested biorational insecticides on beneficial insects are also being assessed in laboratory and field trials

CONTROLLING SUFETULA SPP.: A COCONUT INSECT PEST ON PEAT SOILS

2007 ◽  
Vol 43 (3) ◽  
pp. 289-299 ◽  
Author(s):  
X. BONNEAU ◽  
M. HUSNI ◽  
L. BEAUDOIN-OLLIVIER ◽  
JOKO SUSILO
Keyword(s):  
Insect Pest ◽  
Bare Soil ◽  
Cultural Control ◽  
Control Measures ◽  
Control Methods ◽  
Peat Soils ◽  
Depressive Effect ◽  
Moss Cover ◽  
Adult Insect ◽  
The Impact

We demonstrated experimentally that Sufetula, a root-mining insect, has a depressive effect on coconut yields on peat soils. The impact of the pest resulted in a shortfall in earnings that warranted taking control measures. We considered control methods suitable for rehabilitating infested mature coconut plantings and for preserving young coconut plantings. Currently, cultural control is the only effective method. It involves eliminating all identified shelters for the adult insect, i.e. fern cover and heaps of coconut waste (dry fronds and husks). The aim is to achieve totally bare soil, with moss cover that does not attract the pest, or planted with an unattractive intercrop such as pineapple.

scholarly journals Susceptibility of Physalis longifolia (Solanales: Solanaceae) to Bactericera cockerelli (Hemiptera: Triozidae) and ‘Candidatus Liberibacter solanacearum’

2020 ◽  
Vol 113 (6) ◽  
pp. 2595-2603
Author(s):  
Cesar A Reyes Corral ◽  
W Rodney Cooper ◽  
David R Horton ◽  
Alexander V Karasev
Keyword(s):  
Solanum Tuberosum L ◽  
Field Trials ◽  
Egg Laying ◽  
Western United States ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Zebra Chip ◽  
Candidatus Liberibacter Solanacearum ◽  
Candidatus Liberibacter ◽  
Major Pest

Abstract The potato psyllid, Bactericera cockerelli (Šulc), is a major pest of potato (Solanum tuberosum L.; Solanales: Solanaceae) as a vector of ‘Candidatus Liberibacter solanacearum’, the pathogen that causes zebra chip. Management of zebra chip is challenging in part because the noncrop sources of Liberibacter-infected psyllids arriving in potato remain unknown. Adding to this challenge is the occurrence of distinct genetic haplotypes of both potato psyllid and Liberibacter that differ in host range. Longleaf groundcherry (Physalis longifolia Nutt.) has been substantially overlooked in prior research as a potential noncrop source of Liberibacter-infected B. cockerelli colonizing fields of potato. The objective of this study was to assess the suitability of P. longifolia to the three common haplotypes of B. cockerelli (central, western, and northwestern haplotypes), and to two haplotypes of ‘Ca. L. solanacearum’ (Liberibacter A and B haplotypes). Greenhouse bioassays indicated that B. cockerelli of all three haplotypes produced more offspring on P. longifolia than on potato and preferred P. longifolia over potato during settling and egg-laying activities. Greenhouse and field trials showed that P. longifolia was also highly susceptible to Liberibacter. Additionally, we discovered that infected rhizomes survived winter and produced infected plants in late spring that could then be available for psyllid colonization and pathogen acquisition. Results show that P. longifolia is susceptible to both B. cockerelli and ‘Ca. L. solanacearum’ and must be considered as a potentially important source of infective B. cockerelli colonizing potato fields in the western United States.

Seasonal Dispersal of the Potato Psyllid,Bactericera cockerelli, into Potato Crops

2014 ◽  
Vol 39 (1) ◽  
pp. 177-186 ◽  
Author(s):  
Warrick R. Nelson ◽  
Kylie D. Swisher ◽  
James M. Crosslin ◽  
Joseph E. Munyaneza
Keyword(s):  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Potato Crops

The life-history and control of Hapatesus hirtus Candeze (Coleoptera: Elateridae) in Victoria

1991 ◽  
Vol 42 (5) ◽  
pp. 827 ◽  
Author(s):  
PA Horne ◽  
JA Horne
Keyword(s):  
Life History ◽  
Field Trials ◽  
Soil Samples ◽  
Control Measures ◽  
Potato Tubers ◽  
Larval Stages ◽  
Complete Development ◽  
History Of ◽  
And Control ◽  
Potato Crops

The incidence and life-history of potato wireworm, Hapatesus hirtus Candeze, in Victorian potato crops were studied, and insecticidal control measures assessed. Larval stages were present and active throughout the year. Ten larval instars were identified, probably requiring several years to complete development. Egg development occurred in October-November and the most likely timing of oviposition was December. The relative numbers of larval H. hirtus detected in soil samples, pre-planting baits and harvested tubers are presented. Baiting with halves of potatoes provided an efficient means of detecting areas likely to suffer wireworm damage. One formulation of chlorpyrifos ('Lorsban') was effective in reducing damage to, and larval numbers in, potatoes in field trials. The granular formulation of tefluthrin and the controlled release chlorpyrifos were not effective in protecting potato tubers.

scholarly journals Laboratory studies to determine the efficacy of selected insecticides on tomato/potato psyllid

2009 ◽  
Vol 62 ◽  
pp. 145-151 ◽  
Author(s):  
N.A. Berry ◽  
M.K. Walker ◽  
R.C. Butler
Keyword(s):  
New Zealand ◽  
Crop Yields ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Laboratory Studies ◽  
Control Options ◽  
Potential Impact ◽  
Laboratory Bioassays

Tomato/potato psyllid (Bactericera cockerelli) was first recorded in New Zealand in 2006 and is now a significant pest of solanaceous crops in both glasshouses and fields Given the potential impact of this insect and its associated pathogen(s) on crop yields immediate control options are required Thirteen insecticides were selected for testing In laboratory bioassays insecticides were applied at recommended field rates as a spray (12 chemicals) or a seedling drench (1 chemical) The recorded mortality of tomato/potato psyllid nymphs 48 h after spraying with dichlorvos lambdacyhalothrin methomyl taufluvalinate methamidophos and abamectin was 98100 After 168 h applications of azadirachtin spiromesifen abamectin spirotetramat and thiacloprid gave 82100 mortality while buprofezin pymetrozine and imidacloprid drench gave 3653 mortality of nymphs Further tests are required to confirm the efficacy under cropping conditions

scholarly journals A survey of Maori potato (taewa) seed tubers for the presence of Candidatus Liberibacter solanacearum

2013 ◽  
Vol 66 ◽  
pp. 356-364
Author(s):  
A.J. Puketapu ◽  
R. Gardner-Gee ◽  
L.K. Tooman ◽  
S.S. Beard
Keyword(s):  
Solanum Tuberosum L ◽  
Insect Pest ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Disease Symptoms ◽  
Greenhouse Trial ◽  
Seed Tubers ◽  
Seed Sources ◽  
Candidatus Liberibacter ◽  
Potato Yields

Taewa (Solanum tuberosum L) production is threatened by a new insect pest the tomato potato psyllid (Bactericera cockerelli Sulc) and the bacterium (Candidatus Liberibacter solanacearum (Lso)) vectored by the psyllid Lso is known to reduce potato yields and can infect seed tubers but less is known for taewa specifically In this study tubers from 17 taewa lines were tested for Lso using a qPCR assay grown in a greenhouse and assessed for symptoms of tuberborne Lso Lso was detected by qPCR in three tubers The Lsopositive tubers were from three lines from two North Island seed sources; no Lso was detected in the seven South Island lines tested In the greenhouse trial two of the three Lsopositive tubers emerged and one grew normally The greenhouse trial detected disease symptoms associated with Lso in several other lines but other potato viruses and diseases cause similar symptoms and this area needs further study

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