A field trial to use nematode-trapping fungi Dactylaria Brochopaga and Arthrobotrys Conoides to control root-knot nematode Meliodogyne Incognita infesting Banana (Musa Sapientum)

2016 ◽  
Vol VIII (19) ◽  
pp. 37-43
Author(s):  
Ezzat M. A. Noweer
Keyword(s):  
Field Trial ◽  
Root Knot Nematode ◽  
Musa Sapientum ◽  
Control Root ◽  
Arthrobotrys Conoides

scholarly journals The Application of Manure (Poultry Wests) and Bio-Formulations of Trichoderma harzianum and T. viride and Their Interaction to Control Root-knot Disease on Radish and Chard

2019 ◽  
Vol 32 (1) ◽  
pp. 88-98
Author(s):  
Nuha A. Al-Zehebawi ◽  
Dhia S. Al-Waily ◽  
Labeed A. Al-Saad
Keyword(s):  
Plant Height ◽  
Molecular Identification ◽  
Contaminated Soil ◽  
Trichoderma Harzianum ◽  
Control Treatment ◽  
Root Knot Nematode ◽  
Green House ◽  
Control Root ◽  
Positive Treatment

The study was designed to examine the effect of manure (poultry wastes) and bio-formulations of Trichoderma harzianum and T. viride separately or with some, to control root-knot disease on radish (Raphanus sativus L.) and chard (Beta vulagaris var.cicla (L.)). The study included the isolation of pathogenic nematode of both plant roots, morphological and molecular identification, examination of the pathogenicity in vitro and in vivo and green house experiments involved application of manure and fungal bio-formulations treatments. The morphological and molecular identification confirmed the identity of root-knot nematode, as Meloidogyne javanica, which was pathogenic to radish and chard. The recorded infection severity was 89 and 95% respectively. The green house experiment results revealed that MThTv treatment was significantly reduced infection severity to 0% for radish and chard in contaminated soil (CS) compared with control positive treatment (55.17 and 40%) respectively. MThTv treatment also showed a highest plant height for Radish in non-nematode-contaminated soil (NCS) and CS treatment (17.85 and 16.50 cm) respectively compared with control positive treatment (5.00 cm), while the highest plant height of Chard was 24.5 cm in MThTv-NCS. The wet weight index in Radish showed a superiority of MThTv and MTh in NC on other treatments (201.75 and 189.5 g.plant-1) respectively followed by MThTv-NCS treatment (184.5 g.plant-1) compared with 19.25 gm.plant-1 in control treatment. In Chard the results showed similar pattern represented by superiority of MThTv-NC treatment (255.25 gm.plant-1) followed by MThTv-NCS (190.75 gm.plant-1) compared with 37.50 gm/plant for positive control.

scholarly journals Exploiting cell cycle inhibitor genes of the KRP family to control root-knot nematode induced feeding sites in plants

2017 ◽  
Vol 40 (7) ◽  
pp. 1174-1188 ◽  
Author(s):  
Roberta Ramos Coelho ◽  
Paulo Vieira ◽  
José Dijair Antonino de Souza Júnior ◽  
Cristina Martin-Jimenez ◽  
Lieven De Veylder ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Root Knot Nematode ◽  
Feeding Sites ◽  
Cell Cycle Inhibitor ◽  
Control Root ◽  
Inhibitor Genes

scholarly journals Trichoderma asperellum affects Meloidogyne incognita infestation and development in Celosia argentea

2020 ◽  
Vol 5 (1) ◽  
pp. 778-784
Author(s):  
Alori Elizabeth Temitope ◽  
Aluko Ajibola Patrick ◽  
Joseph Abiodun ◽  
Adekiya Aruna Olasekan ◽  
Aremu Charity Onye ◽  
...  
Keyword(s):  
Meloidogyne Incognita ◽  
Plant Root ◽  
Trichoderma Asperellum ◽  
Root Knot Nematode ◽  
Environmental Consequences ◽  
Control Root ◽  
Biocontrol Activity ◽  
Celosia Argentea ◽  
Gall Index ◽  
Plant Root System

AbstractDue to the rise in cost and detrimental health and environmental consequences that accompany the use of nematicides, there is a need for a more eco-friendly and less expensive alternative to control root-knot nematode (Meloidogyne incognita). Nematode infestation reduces the quality and quantity of Celosia argentea Linn. A pot experiment was conducted in a greenhouse to determine the biocontrol efficacy of Trichoderma asperellum against M. incognita in C. argentea. The treatments consisted M. incognita infected C. argentea inoculated with 0, 2.2 × 107, 4.4 × 107, or 6.6 × 107 cfu/pot of T. asperellum. All doses of T. asperellum reduced the root-knot nematode population and root gall index. Growth and development of C. argentea were improved, indicating that T. asperellum has the potential to be used as a biocontrol agent in C. argentea production. The biocontrol activity of T. asperellum in C. argantea increased as the week went by until the plants attained full maturity. Hence, the control of M. incognita by T. asperellum depends on the developmental stage of the plant root system.

Effect of a nitrification inhibitor on nematicidal activity of organic and inorganic ammonia-releasing compounds against the root-knot nematode Meloidogyne javanica

Nematology ◽  
2003 ◽  
Vol 5 (4) ◽  
pp. 505-513 ◽  
Author(s):  
Yuji Oka ◽  
Shimon Pivonia
Keyword(s):  
Cottonseed Meal ◽  
Soil Ph ◽  
Field Trial ◽  
Nitrification Inhibitor ◽  
Ammonium Hydroxide ◽  
Meloidogyne Javanica ◽  
Nematode Control ◽  
Root Knot Nematode ◽  
Tomato Plants ◽  
Ph Values

AbstractThe nematicidal activities of ammonium hydroxide, chitin and cottonseed meal applied to soil were enhanced by nitrapyrin, a nitrification inhibitor, in pot experiments. In a field trial, root galling index of tomato plants grown in the soil treated with 250 kg NH4OH-N/ha in combination with nitrapyrin was lower than that of tomato plants grown without nitrapyrin 40 days after planting; however, there was no difference between these treatments in tomato yields and root galling indices at the end of the experiment (128 days). Nitrapyrin inhibited the nitrification of the ammonium added to the soil or released from cottonseed meal for up to 28 days, and kept ammonium concentrations and soil pH values higher for longer periods compared with those in soils treated without nitrapyrin. It is suggested that higher ammonia (NH3) concentrations due to high soil pH and ammonium concentrations in the soil for longer periods caused the enhancement of nematicidal activities by nitrapyrin. The use of ammonia-releasing compounds in combination with a nitrification inhibitor may make nematode control more feasible by reducing the amount of amendments applied.

scholarly journals The synergistic advantage of combining chloropicrin or dazomet with fosthiazate nematicide to control root-knot nematode in cucumber production

2019 ◽  
Vol 18 (9) ◽  
pp. 2093-2106 ◽  
Author(s):  
Bin HUANG ◽  
Qian WANG ◽  
Mei-xia GUO ◽  
Wen-sheng FANG ◽  
Xiao-ning WANG ◽  
...  
Keyword(s):  
Root Knot Nematode ◽  
Control Root

Root Extracts of Plants to Control Root-Knot Nematode on Edible Soybean

2006 ◽  
Vol 12 (2) ◽  
pp. 5-12 ◽  
Author(s):  
A. A. Adegbite ◽  
S. O. Adesiyan
Keyword(s):  
Root Knot Nematode ◽  
Root Extracts ◽  
Control Root

Evidence for a Disease Complex Between Pythium aphanidermatum and Root-knot Nematodes in Cucumber

2016 ◽  
Vol 17 (3) ◽  
pp. 200-201 ◽  
Author(s):  
Kelly A. Morris ◽  
David B. Langston ◽  
Bhabesh Dutta ◽  
Richard F. Davis ◽  
Patricia Timper ◽  
...  
Keyword(s):  
Meloidogyne Incognita ◽  
Field Trial ◽  
Pythium Aphanidermatum ◽  
Growth Chamber ◽  
Damping Off ◽  
Root Knot Nematode ◽  
Root Knot Nematodes ◽  
Disease Complex

A field trial in 2012 indicated a possible disease complex between Pythium aphanidermatum and the root-knot nematode (RKN) Meloidogyne incognita in cucumber. Two growth chamber trials were conducted to investigate this potential disease complex. The results indicate that control of RKN may be important for managing Pythium damping-off in cucumber. Accepted for publication 29 August 2016.

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