Plant health evaluations of Belonolaimus longicaudatus and Meloidogyne incognita colonized bermudagrass using remote sensing Cover

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Plant health evaluations of Belonolaimus longicaudatus and Meloidogyne incognita colonized bermudagrass using remote sensing

Journal of Nematology

Volume 52 (2020): Issue 1 (January 2020)

By: Will L. Groover and Kathy S. Lawrence

Open Access

|Nov 2020

Figures & Tables

Auburn University Meloidogyne incognita nematicide microplot trials for 2018 and 2019 showing M. incognita population density for 2018 (A) and 2019 (B), visual turf quality ratings for 2018 (C) and 2019 (D), NDVI ratings for 2018 (E) and 2019 (F), and NDRE values for 2018 (G) and 2019 (H). *Different from the untreated control according to the pairwise comparison of each treatment to the untreated (Tukey’s, P ≤ 0.05).

Auburn University Belonolaimus longicaudatus nematicide microplot trials for 2018 and 2019 showing B. longicaudatus population density for 2018 (A) and 2019 (B), visual turf quality ratings for 2018 (C) and 2019 (D), NDVI ratings for 2018 (E) and 2019 (F), and NDRE values for 2018 (G) and 2019 (H). *Different from the untreated control according to the pairwise comparison of each treatment to the untreated (Tukey’s, P ≤ 0.05).

Plant-parasitic nematode genera identified at Montevallo Golf Course, Montevallo, AL in 2019. Genera include Hoplolaimus spp. (A), Helicotylenchulus spp. (B), Meloidogyne spp. (C), Belonolaimus longicaudatus (D), and Criconemoides spp. (E). *Different from the untreated control according to the pairwise comparison of each treatment to the untreated (Tukey’s, P ≤ 0.05).

Nematicide effects on total plant-parasitic nematode population density (A), visual turf quality (B), NDVI (C), and NDRE (D) at Montevallo Golf Course, Montevallo AL, 2019. *Different from the untreated control according to the pairwise comparison of each treatment to the untreated (Tukey’s, P ≤ 0.05).

Pearson correlation coefficients† resulting from linear correlation of vigor ratings and plant-parasitic nematode density from four bermudagrass putting greens treated with three different nematicides in 2019 in Montevallo, AL_

	July 22	August 5	August 19	September 3	September 16	September 30	October 14
Turf visual quality ^a
NDVI^b	NS	NS	0.63**	0.70**	0.62**	0.78***	0.80***
NDRE^c	NS	NS	NS	0.59*	0.51*	0.67**	0.60**
NDVI
NDRE	NS	NS	0.49*	0.76***	0.93***	0.79***	0.68**
Total plant-parasitic nematodes
Turf visual quality	−0.64**		−0.81***		−0.85***		−0.84***
NDVI	−0.47*		−0.84***		−0.80***		−0.82***
NDRE	NS		−0.59*		−0.70**		−0.70**

Pearson correlation coefficients† resulting from linear correlation of data parameters from 2018 and 2019 Meloidogyne incognita infested bermudagrass microplots in Auburn, AL_

	2018			2019
	July	August	September	July	August	September
Turf visual quality ^a
NDVI^b	0.59**	NS	NS	NS	NS	0.63***
NDRE^c	NS	NS	NS	NS	NS	0.66***
NDRE
NDVI	NS	0.72***	0.93***	0.60***	0.72***	0.95***
Meloidogyne incognita
Turf visual quality	NS	−0.39*	NS	−0.64*	−0.39*	−0.59**
NDVI	NS	−0.48*	−0.76***	NS	−0.37*	−0.82***
NDRE	NS	NS	−0.61**	NS	NS	−0.76***

Pearson correlation coefficients† resulting from linear correlation of data parameters from 2018 and 2019 Belanolaimus lonigcaudatus infested bermudagrass microplots in Auburn, AL_

	2018			2019
	July	August	September	July	August	September
Turf visual quality ^a
NDVI^b	NS	NS	0.63***	NS	0.43*	0.41*
NDRE^c	NS	NS	0.66***	NS	0.45*	0.56**
NDRE
NDVI	0.60**	0.72***	0.96***	0.91***	0.96***	0.84***
Belonolaimus longicaudatus
Turf visual quality	−0.64***	NS	−0.56**	NS	−0.56**	−0.54**
NDVI	NS	NS	−0.57**	−0.51**	−0.57***	−0.56**
NDRE	NS	NS	−0.61**	−0.53**	−0.61***	−0.63**

DOI: https://doi.org/10.21307/jofnem-2020-109 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X

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Language: English

Page range: 1 - 13

Published on: Nov 6, 2020

Published by: Society of Nematologists, Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

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Life sciences, other

© 2020 Will L. Groover, Kathy S. Lawrence, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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