Root colonization and growth promotion of cover crops by Pochonia chlamydosporia used in the management of plant-parasitic nematodes

Rhizosphere ◽  
2021 ◽  
pp. 100432
Author(s):  
Raul Rodrigues Coutinho ◽  
Paulo Victor Magalhães Pacheco ◽  
Thalita Suelen Avelar Monteiro ◽  
Huarlen Marcio Balbino ◽  
Bruno Coutinho Moreira ◽  
...  
Keyword(s):  
Cover Crops ◽  
Root Colonization ◽  
Growth Promotion ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Pochonia Chlamydosporia ◽  
Plant Parasitic

Host suitability of cover crops for Meloidogyne javanica and M. incognita

Nematology ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 659-666
Author(s):  
Paula Santos Ferreira ◽  
José Luiz Rodrigues Torres ◽  
Maria Amelia dos Santos ◽  
Ricardo de Oliveira Parolini ◽  
Ernane Miranda Lemes
Keyword(s):  
Cover Crops ◽  
Pennisetum Glaucum ◽  
Meloidogyne Javanica ◽  
Pigeon Pea ◽  
Host Suitability ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Nematode Reproduction ◽  
Sunn Hemp ◽  
Plant Parasitic

Summary Management of plant-parasitic nematodes in no-tillage systems relies on knowledge of the species, their abundance and their host range in a certain cropping area. Crop rotation is one of the most efficient techniques in the control of plant-parasitic nematodes; thus, the identification of non-host plant species is essential. Therefore, the aim of this study was to evaluate the host suitability of different cover crops used in crop rotations to control two of the most devastating plant-parasitic nematodes in the Brazilian central region, Meloidogyne javanica and M. incognita. Two experiments were conducted in a completely randomised design under glasshouse conditions. In the M. incognita experiment, seven treatments (cover crops) were evaluated: Crotalaria juncea (sunn hemp; CJ), Stylosanthes humilis (Townsville stylo; TS), Pennisetum glaucum (millet; M), Triticum aestivum (wheat; W), Mucuna aterrima (black mucuna, BM), Glycine max (soybean treated with nematicide (fluensulfona) (SN) and soybean without nematicide (SwN)). In the M. javanica experiment, nine treatments were evaluated: Cajanus cajan (pigeon pea), Brassica napus (canola), B. nigra (mustard), CJ, M, W, BM, SN and SwN. The evaluations were performed 60 days after inoculation, when eggs and juveniles were present in the plant roots and soil, and the nematode reproduction factors (RF) were determined. The results indicated that CJ, M and BM were effective in controlling M. javanica and M. incognita. The SwN and even SN resulted in high RF and were not effective in the control of M. javanica and M. incognita.

Cover crops and organic mulches for nematode, weed and plant health management

Nematology ◽  
2008 ◽  
Vol 10 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Koon-Hui Wang ◽  
Nancy Kokalis-Burelle ◽  
Robert McSorley ◽  
Raymond Gallaher
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Lima Bean ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematodes ◽  
Susceptible Host ◽  
Organic Mulch ◽  
Sunn Hemp ◽  
Plant Parasitic

AbstractTraditional cover cropping systems for nematode management seldom consider weed and soil nutrient management concurrently. Integrating cover crops suppressive to plant-parasitic nematodes with a cover crop mulching system could improve traditional approaches. Two field experiments were conducted in 2003 and 2004 to evaluate 'Tropic Sun' sunn hemp (Crotalaria juncea) and 'Iron Clay' cowpea (Vigna unguiculata) as summer cover crops and as organic mulches. Both experiments were in a 3 × 3 split-plot design in which the main plots were summer planting of sunn hemp, cowpea or fallow, and the subplots were organic mulch of sunn hemp, cowpea or no mulch. The summer cover crop was followed by turnip (Brassica rapa) and lima bean (Phaseolus lunatus) in the autumn. Using sunn hemp as organic mulch suppressed root-knot nematodes more effectively than using it as a cover crop, but only on a less susceptible host such as turnip, and not on a very susceptible host such as lima bean. While sunn hemp as a cover crop failed to enhance beneficial free-living nematodes, sunn hemp as an organic mulch enhanced bacterial-feeding nematode population densities. Sunn hemp mulch also suppressed broadleaf weeds but not grasses or nutsedges. Although sunn hemp and cowpea cover crops did not increase lima bean N and K content, their mulches increased N and K content. Similar results were observed for turnip and lima bean yields. Population density of root-knot nematodes was positively related to abundance of omnivorous nematode in 2003. The abundance of plant-parasitic nematodes was negatively related to the infestation levels of Pasteuria penetrans, and the abundance of predatory nematodes in 2004. Factors that might have affected the performance of sunn hemp on nematode communities are discussed.

scholarly journals Review on Control Methods against Plant Parasitic Nematodes Applied in Southern Member States (C Zone) of the European Union

Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 602
Author(s):  
Nicola Sasanelli ◽  
Alena Konrat ◽  
Varvara Migunova ◽  
Ion Toderas ◽  
Elena Iurcu-Straistaru ◽  
...  
Keyword(s):  
European Union ◽  
Cover Crops ◽  
Control Strategies ◽  
Physical Method ◽  
Parasitic Nematodes ◽  
The European Union ◽  
Nematode Control ◽  
Plant Parasitic Nematodes ◽  
Control Management ◽  
Plant Parasitic

The European legislative on the use of different control strategies against plant-parasitic nematodes, with particular reference to pesticides, is constantly evolving, sometimes causing confusion in the sector operators. This article highlights the nematode control management allowed in the C Zone of the European Union, which includes the use of chemical nematicides (both fumigant and non-fumigant), agronomic control strategies (crop rotations, biofumigation, cover crops, soil amendments), the physical method of soil solarization, the application of biopesticides (fungi, bacteria and their derivatives) and plant-derived formulations. The authors analyze the use of these strategies and substances in organic agriculture as well as in Integrated Pest Management (IPM) programs.

The effect of cover crops on plant parasitic-nematodes of sugarcane

2011 ◽  
Vol 57 (4) ◽  
pp. 363-375 ◽  
Author(s):  
Shaun David Berry ◽  
Ruth Rhodes ◽  
Jean Foster ◽  
Jean-Michel Risede ◽  
Rianto van Antwerpen
Keyword(s):  
Cover Crops ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Plant Parasitic
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