Nematicide Effects on Arthropods in Bermudagrass

Waldo, Benjamin D.; Soto-Adames, Felipe N.; Crow, William T.

doi:10.1653/024.103.00407

Cited by 2 publications

(1 citation statement)

References 45 publications

(42 reference statements)

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“…These are parasitic to a variety of crops such as cucumber, melon, pepper, tomato and fruit, and infect the entire plant including the roots, stems, leaves, flowers, fruit and seeds [ 2 , 3 ]. This scenario demands further research to identify effective albeit environment-friendly alternatives to replace legislatively withdrawn highly toxic nematicides [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity and Metabolites of Endoparasitic Nematophagous Fungus Drechmeria coniospora YMF1.01759 against Nematodes

et al. 2021

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Plant parasitic nematodes cause severe damage to crops. Endoparasitic nematophagous fungi (ENF) are a type of important biocontrol fungi, which can cause disease or kill nematodes by producing various spores. As a major ENF, Drechmeria coniospora displays certain potential for controlling plant-parasitic nematodes. In this study, the pathogenicity and secondary metabolites of the endoparasitic fungus D. coniospora YMF1.01759 were investigated. The strain D. coniospora YMF1.01759 had high infection efficiency against nematodes. The process of infecting nematodes by the strain was observed under an electron microscope. Here, 13 metabolites including one new compound 4(S)-butoxy-3-(butoxymethyl)-2-hydroxycyclopent-2-en-1-one (2) were isolated and identified from the fermentation products of D. coniospora YMF1.01759 cultured in a SDAY solid medium. Furthermore, a bioassay showed that 5-hydroxymethylfuran-2-carboxylic acid (1) is toxic to the root knot nematode Meloidogyne incognita and affects the hatching of its egg. Thereby, the nematicidal mortality attained 81.50% at 100 μg/mL for 48 h. Furthermore, egg hatching was inhibited at the tested concentrations, compared with water control eggs. This is the first report on the secondary metabolites of the ENF D. coniospora. The results indicated that D. coniospora could infect nematodes by spores and produce active metabolites to kill nematodes. The biological control potential of D. coniospora against nematodes was expounded further.

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Section: Introductionmentioning

confidence: 99%

Pathogenicity and Metabolites of Endoparasitic Nematophagous Fungus Drechmeria coniospora YMF1.01759 against Nematodes

et al. 2021

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Survey on Major Insect Pests and Management Practices Adopted for Georgia Golf Courses and Sod Farms

Gireesh

Joseph

2022

Journal of Entomological Science

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Because turfgrass is maintained in various settings, such as golf courses, lawns, and commercially grown in sod farms, it is critical to understand its major insect pests and management practices. A survey was conducted to determine the major insect pests and current management practices in the commercial turfgrass industries in Georgia. A total of 32 respondents representing golf courses and sod farms participated in the survey. A significantly greater number of respondents represented golf courses (75% of 32 respondents) than sod farms (25%). The respondents (n =31) identified fall armyworm, Spodoptera frugiperda J.E. Smith (32.5%), white grubs, Phyllophaga spp. (20.8%), mole crickets (Orthoptera: Gryllotalpidae; 16.9%), and others (22%) as major pests in comparison to billbugs, Sphenophorus spp. (7.8%) and chinch bugs, Blissus spp. (0%). Of 31 respondents, 64.5% applied insecticides two to five times and 22.5% respondents applied insecticides 5–10 times for insect management each year. Among nonchemical tools (n=24), most respondents opted to do nothing (70.8%) than use biological control (0%), host plant resistance (25%), or other management tools (4.2%).

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Nematicide Effects on Arthropods in Bermudagrass

Cited by 2 publications

References 45 publications

Pathogenicity and Metabolites of Endoparasitic Nematophagous Fungus Drechmeria coniospora YMF1.01759 against Nematodes

Pathogenicity and Metabolites of Endoparasitic Nematophagous Fungus Drechmeria coniospora YMF1.01759 against Nematodes

Survey on Major Insect Pests and Management Practices Adopted for Georgia Golf Courses and Sod Farms

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