Tomato Production under Mesh Reduces Crop Loss to Tomato Spotted Wilt Virus in Some Cultivars

Díez, María José; Roselló, Salvador; Nuez, F.; Costa, Joaquín; Catalá, M.S.; Lacasa, A.

doi:10.21273/hortsci.34.4.634

Cited by 5 publications

(2 citation statements)

References 5 publications

(4 reference statements)

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“…For example, although the mesh may deter TPP and other insects from accessing the crop, they may not bar access by micropathogens such as fungal spores. Similarly, if meshes alter aspects of the microclimate in the crop, such as temperature and relative humidity, this may influence the development of fungal diseases of solanaceous crops such as Phytophthora infestans and Alternaria solani (although a reduction in the incidence of disease is also possible; see Diez et al 1999). As yet we have no information on the durability and longevity of meshes under New Zealand field conditions, or if the efficacy of meshes change as they age.…”

Section: Discussionmentioning

confidence: 99%

Pore size criteria of mesh crop covers for the exclusion of tomato-potato psyllid (Bactericera cockerelli)

Merfield

Hale

Hodge

2014

New Zealand Journal of Crop and Horticultural Science

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Control methods for tomato-potato psyllid (TPP; Bactericera cockerelli) are currently dominated by the use of synthetic biocides. A non-chemical alternative for TPP management is crop mesh, which forms a physical barrier between crop and pest. This study examined the ability of TPP adults to penetrate, or lay eggs through, 22 commercially available crop meshes using a laboratory bioassay. Adult TPP were prevented from moving through the mesh if the mesh complied with any one of the following criteria: shortest pore length <0.55 mm; longest pore length <0.60 mm; diagonal length <0.85 mm; area <0.3 mm 2 . Eggs were found on foliage only when TPP adults had penetrated the mesh, suggesting that eggs could not be laid through the mesh. The results indicate that crop meshes may provide non-chemical control for TPP that can be used by organic growers, and producers attempting to reduce chemical inputs as part of integrated pest management.

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Section: Discussionmentioning

confidence: 99%

Pore size criteria of mesh crop covers for the exclusion of tomato-potato psyllid (Bactericera cockerelli)

Merfield

Hale

Hodge

2014

New Zealand Journal of Crop and Horticultural Science

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“…Multicomponent management approaches are most effective, and some measure of control can be achieved through the use of the Sw‐5 resistance gene in tomato, thrips‐proof mesh tunnels or a combination of both in the field ( Cho et al. , 1996 ; Diez et al. , 1999 ).…”

Section: Management Of Tswvmentioning

confidence: 99%

Tomato spotted wilt virus—positive steps towards negative success

Adkins

2000

Molecular Plant Pathology

124

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Taxonomy: Tomato spotted wilt virus (TSWV) is the type member of the plant-infecting Tospovirus genus in the family Bunyaviridae, a large group of predominantly vertebrate- and insect-infecting RNA viruses. Physical properties: Virions are 80-120-nm pleomorphic particles with surface projections composed of two viral glycoproteins, G1 and G2 (Fig. 1). Virion composition is 5% nucleic acid, 70% protein, 5% carbohydrate and 20% lipid. The genome consists of three negative or ambisense ssRNAs designated S (2.9 kb), M (4.8 kb) and L (8.9 kb), with partially complementary terminal sequences that allow the RNA to adopt a pseudocircular or panhandle conformation. Each genomic RNA is encapsidated by multiple copies of the viral nucleocapsid (N) protein to form ribonucleoprotein structures also known as nucleocapsids. The nucleocapsids are enclosed in a host-derived membrane bilayer along with an estimated 10-20 copies of the L protein, the putative RNA-dependent RNA polymerase. Hosts: Over 800 plant species, both dicots and monocots, in more than 80 plant families are susceptible to TSWV (Goldbach and Peters, 1994). The Solanaceae and Compositae families contain the largest numbers of susceptible plant species (Prins and Kormelink, 1998). TSWV also replicates in its insect vector, thrips (Thysanoptera: Thripidae) (Ullman et al., 1993; Wijkamp et al., 1993). Useful web site: http://www4.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/11050003.htm.

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Cropping system influences Tomato spotted wilt virus disease development, thrips population and yield of tomato (Lycopersicon esculentum)

Ramkat

Wangai

Ouma

et al. 2008

Annals of Applied Biology

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Yield of tomato is limited by many diseases including Tomato spotted wilt virus disease. This study was conducted in the field at Kenya Agriculture Research Institute Njoro, Kenya, in 2004 and 2006 to determine the effect of intercropping on disease development, thrips population and yield of tomato variety Cal J grown under four intercrop systems involving kale, onion, maize and sole tomato. The experimental design was a Randomised Complete Block Design (RCBD) replicated three times. Disease scores on tomato-maize differed significantly from tomato-kale and tomato-onion in both years of the study. Maize cropping system had a low significant thrips population from the other cropping systems. Tomato-maize intercrop produced the lowest fruit weights and marketable yield in 2004 and 2006, while yield of onion, kale and maize in intercrops were not significantly different from their monocrops. Land equivalent ratio was >1 in all the cropping systems.

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Tomato Production under Mesh Reduces Crop Loss to Tomato Spotted Wilt Virus in Some Cultivars

Cited by 5 publications

References 5 publications

Pore size criteria of mesh crop covers for the exclusion of tomato-potato psyllid (Bactericera cockerelli)

Pore size criteria of mesh crop covers for the exclusion of tomato-potato psyllid (Bactericera cockerelli)

Tomato spotted wilt virus—positive steps towards negative success

Cropping system influences Tomato spotted wilt virus disease development, thrips population and yield of tomato (Lycopersicon esculentum)

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