Development of single-dispenser pheromone suppression of Epiphyas postvittana, Planotortrix octo and Ctenopseustis obliquana in New Zealand stone fruit orchards

2012 ◽  
Vol 68 (6) ◽  
pp. 928-934 ◽  
Author(s):  
David M Suckling ◽  
Gillian F McLaren ◽  
Lee-Anne M Manning ◽  
Vanessa J Mitchell ◽  
Bernie Attfield ◽  
...  
Keyword(s):  
New Zealand ◽  
Stone Fruit ◽  
Epiphyas Postvittana ◽  
Fruit Orchards ◽  
Ctenopseustis Obliquana ◽  
Planotortrix Octo

scholarly journals Copper and streptomycin resistance in bacterial strains isolated from stone fruit orchards in New Zealand

2005 ◽  
Vol 58 ◽  
pp. 101-105 ◽  
Author(s):  
J.L Vanneste ◽  
G.E McLaren ◽  
J. Yu ◽  
D.A. Conzish ◽  
R. Boyd
Keyword(s):  
New Zealand ◽  
Pseudomonas Syringae ◽  
Streptomycin Resistance ◽  
Stone Fruit ◽  
Research Centre ◽  
Bacterial Strains ◽  
Bacterial Spot ◽  
Bacterial Diseases ◽  
Xanthomonas Arboricola ◽  
Fruit Orchards

Stone fruit orchards in New Zealand are sprayed with copperbased compounds and streptomycin to control bacterial diseases such as bacterial blast (Pseudomonas syringae pv syringae) and bacterial spot (Xanthomonas arboricola pv pruni) About 50 of the bacteria isolated from nectarines from the orchard at Clyde Research Centre Central Otago in September 2003 were found to be resistant to copper The percentage of strains of P syringae pv syringae isolated in 2004 from nectarines from the same orchard that were resistant to 500 mg/litre of copper was 58 This percentage rose to 92 seven days after treating the trees with copper In 35 of the 48 samples from commercial stone fruit orchards tested more than half of the bacteria isolated were resistant to 500 mg/litre of copper Only five strains of Xanthomonas sp out of the 306 strains tested were resistant to copper; none were resistant to streptomycin

scholarly journals Insecticide resistance management of leafrollers (LepidopteraTortricidae) in New Zealand

2000 ◽  
Vol 53 ◽  
pp. 163-167 ◽  
Author(s):  
P. Lo ◽  
J.T.S. Walker ◽  
D.M. Suckling
Keyword(s):  
New Zealand ◽  
Insecticide Resistance ◽  
Resistance Management ◽  
Management Programme ◽  
Epiphyas Postvittana ◽  
Organophosphate Insecticide ◽  
Insecticide Resistance Management ◽  
Detoxification Mechanisms ◽  
Planotortrix Octo ◽  
Separate Population

Resistance to the organophosphate insecticide azinphosmethyl has been previously identified in two species of leafroller (Lepidoptera Tortricidae) in New Zealand This study confirmed resistance in a third speciesCtenopseustis obliquana Populations of Epiphyas postvittana Planotortrix octo and C obliquana resistant to azinphosmethyl were not crossresistant to lufenuron A separate population of C obliquana was resistant to taufluvalinate Crossresistance between azinphosmethyl and tebufenozide occurred in P octo and C obliquana but not in E postvittana This difference in crossresistance between the three species suggests that at least two different detoxification mechanisms may be operating Therefore we cannot generalise about whether resistant populations of each species will be fully susceptible to new insecticides Lufenuron is recommended as a key insecticide within a resistance management programme for leafrollers while tebufenozide should be used with caution

scholarly journals Species composition and abundance of leafrollers in a Canterbury pine plantation

2002 ◽  
Vol 55 ◽  
pp. 85-89
Author(s):  
E.G. Brockerhoff ◽  
H. Jactel ◽  
A.C. Leckie ◽  
D.M. Suckling
Keyword(s):  
Species Composition ◽  
The Other ◽  
Indigenous Species ◽  
Epiphyas Postvittana ◽  
Pine Plantation ◽  
Plantation Forests ◽  
Pheromone Trapping ◽  
Ctenopseustis Obliquana ◽  
Planotortrix Octo ◽  
Planotortrix Excessana

Several leafroller species (Tortricidae) are known to occasionally cause considerable defoliation in Pinus radiata plantation forests We conducted pheromone trapping for five indigenous species Ctenopseustis herana Ctenopseustis obliquana Planotortrix excessana Planotortrix notophaea and Planotortrix octo and the exotic Epiphyas postvittana to determine their abundance in 20 P radiata stands in Eyrewell Forest North Canterbury Trapping from December 2001 to February 2002 indicated that E postvittana and C obliquana were very abundant (with mean catches of 077 and 044 moths/trap/day respectively) while the other species were rarely caught Results for the native leafrollers differ considerably from those reported from other plantation forests and other habitats in Canterbury such as apple orchards where P octo and C herana are generally more common

Pheromone-mediated mass trapping and population diversion as strategies for suppressing Carpophilus spp. (Coleoptera: Nitidulidae) in Australian stone fruit orchards

2001 ◽  
Vol 3 (1) ◽  
pp. 41-47 ◽  
Author(s):  
David G. James ◽  
Beverley Vogele ◽  
Richard J. Faulder ◽  
Robert J. Bartelt ◽  
Christopher J. Moore
Keyword(s):  
Stone Fruit ◽  
Mass Trapping ◽  
Fruit Orchards

Leucostoma cinctum. [Descriptions of Fungi and Bacteria].

1998 ◽  
Author(s):  
V. P. Hayova
Keyword(s):  
Czech Republic ◽  
North America ◽  
Geographical Distribution ◽  
Host Response ◽  
Comparative Anatomy ◽  
Fruit Trees ◽  
Stone Fruit ◽  
Republic Of Georgia ◽  
Conidial State ◽  
Fruit Orchards

Abstract A description is provided for Leucostoma cinctum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leucostoma cinctum, especially in its conidial state, is a well-known pathogen of stone-fruit trees causing necrosis of twigs, perennial Cytospora-canker. The fungus penetrates mainly through the scars, and may result in dieback of branches or even whole trees. Tree susceptibility to L. cinctum is influenced by lesions (Stanova, 1990). Comparative anatomy and host response of peach cultivars inoculated with L. cinctum was studied by Biggs (1986). Resistance of different cultivars of stone-fruit trees to L cinctum has been investigated by many authors (Cociu et al., 1991; Miles et al., 1989; Pedryc & Rozsnyai, 1991). HOSTS: On dead or dying, attached or fallen twigs of the Rosaceae, mainly Prunoideae (Amygdalus, Armeniaca, Cerasus, Persica, Prunus) and rarely other subfamilies of the Rosaceae, including genera such as Cotoneaster, Crataegus, Malus and Pyrus. GEOGRAPHICAL DISTRIBUTION: Asia: Armenia, Republic of Georgia, Iran, Kazakhstan, Russia, Turkmenistan, Uzbekistan. Australasia: Australia. Europe: Czech Republic, France, Germany, Hungary, Italy, Moldova, Rumania, Russia, Slovakia, Spain, Switzerland, Sweden, Turkey, UK, Ukraine, former Yugoslavia. North America: Canada, USA (Idaho, Michigan, New-Jersey, Oregon). TRANSMISSION: Both conidia and ascospores are air-borne, especially under humid conditions. Orange or reddish droplets or tendrils of conidia extruded from conidiomata can be often seen after rain. It is also known that arthropods can carry propagules in stone-fruit orchards (Helton et al., 1988).

scholarly journals Identification and Characterization of Benzimidazole Resistance in Monilinia fructicola from Stone Fruit Orchards in California

2003 ◽  
Vol 69 (12) ◽  
pp. 7145-7152 ◽  
Author(s):  
Zhonghua Ma ◽  
Michael A. Yoshimura ◽  
Themis J. Michailides
Keyword(s):  
Dna Sequences ◽  
Point Mutations ◽  
Brown Rot ◽  
Stone Fruit ◽  
Monilinia Fructicola ◽  
Tubulin Gene ◽  
Benzimidazole Fungicides ◽  
Specific Pcr ◽  
Allele Specific ◽  
Fruit Orchards

ABSTRACT Low and high levels of resistance to the benzimidazole fungicides benomyl and thiophanate-methyl were observed in field isolates of Monilinia fructicola, which is the causative agent of brown rot of stone fruit. Isolates that had low levels of resistance (hereafter referred to as LR isolates) and high levels of resistance (hereafter referred to as HR isolates) were also cold and heat sensitive, respectively. Results from microsatellite DNA fingerprints showed that genetic identities among the populations of sensitive (S), LR, and HR isolates were very high (>0.96). Analysis of DNA sequences of theβ -tubulin gene showed that the LR isolates had a point mutation at codon 6, causing a replacement of the amino acid histidine by tyrosine. Codon 198, which encodes a glutamic acid in S and LR isolates, was converted to a codon for alanine in HR isolates. Based on these point mutations in the β-tubulin gene, allele-specific PCR assays were developed for rapid detection of benzimidazole-resistant isolates of M. fructicola from stone fruit.

Discontinuance of tebuconazole in the field restores sensitivity of Monilinia fructicola in stone fruit orchards

2019 ◽  
Vol 69 (1) ◽  
pp. 68-76 ◽  
Author(s):  
W. V. Pereira ◽  
R. G. F. Morales ◽  
A. I. G. Bauer ◽  
K. Kudlawiec ◽  
L. L. May‐De‐Mio
Keyword(s):  
Stone Fruit ◽  
Monilinia Fructicola ◽  
Fruit Orchards
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