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Evaluation of a new chemical nematicide, fluazaindolizine (ReklemelTM active), for plant-parasitic nematode management in bermudagrass Cover

Evaluation of a new chemical nematicide, fluazaindolizine (ReklemelTM active), for plant-parasitic nematode management in bermudagrass

Journal of Nematology
Volume 53 (2021): Issue 1 (January 2021)
By:
Open Access
|Apr 2021

Figures & Tables

Figure 1:

2018 Meloidogyne incognita population density in greenhouse evaluations 84 days after treatment (DAT). Rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).
2018 Meloidogyne incognita population density in greenhouse evaluations 84 days after treatment (DAT). Rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).

Figure 2:

2018 Belonolaimus longicaudatus population density in greenhouse evaluations 84 days after treatment (DAT). Rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).
2018 Belonolaimus longicaudatus population density in greenhouse evaluations 84 days after treatment (DAT). Rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).

Figure 3:

2019 Belonolaimus longicaudatus population density in Auburn, AL greenhouse evaluations 84 days after treatment (DAT). Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).
2019 Belonolaimus longicaudatus population density in Auburn, AL greenhouse evaluations 84 days after treatment (DAT). Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. Means of bars with the same letter above them are not significantly different (Tukey–Kramer, P ≤ 0.05).

Figure 4:

Meloidogyne incognita population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide applications through 2018 bermudagrass microplot evaluations in Auburn, AL, 2018. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).
Meloidogyne incognita population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide applications through 2018 bermudagrass microplot evaluations in Auburn, AL, 2018. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).

Figure 5:

Meloidogyne incognita population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2019 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).
Meloidogyne incognita population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2019 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).

Figure 6:

Belonolaimus longicaudatus population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2018 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).
Belonolaimus longicaudatus population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2018 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).

Figure 7:

Belonolaimus longicaudatus population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2019 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).
Belonolaimus longicaudatus population density (A), visual turfgrass quality (B), and NDVI values (C) as affected by nematicide treatments in 2019 bermudagrass microplot evaluations, Auburn, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).

Figure 8:

Belonolaimus longicaudatus population density in 2018 (A) and 2019 (B), and Meloidogyne incognita population density in 2019 (C) as affected by nematicide treatments in nematicide trials at Fairhope, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).
Belonolaimus longicaudatus population density in 2018 (A) and 2019 (B), and Meloidogyne incognita population density in 2019 (C) as affected by nematicide treatments in nematicide trials at Fairhope, AL. Nematicide rates were applied as follows: Fluazaindolizine 1.1 kg ai/ha at weeks 0, 4, 8, 12; 2.25 kg ai/ha at weeks 0, 8; 4.5 kg ai/ha at week 0; fluopyram 0.25 kg ai/ha at weeks 0, 8. *Different from the untreated according to the pairwise comparison of each treatment to the untreated control (Tukey–Kramer; P ≤ 0.05).

Pearson correlation coefficients † resulting from linear correlation of Meloidogyne incognita and Belonolaimus longicaudatus population density in microplot bermudagrass with visual turfgrass quality and NDVI values in Auburn, AL for 2018 and 2019_

2018
June 29August 24September 28
Meloidogyne incognita population density
Visual quality ‡ 0.050.05−0.77***
NDVI § N/A−0.24−0.52**
Belonolaimus longicaudatus population density
Visual quality−0.08−0.64***−0.60**
NDVIN/A−0.62***−0.54**
2019
July 22August 19September 23October 21
Meloidogyne incognita population density
Visual quality−0.78***−0.60**−0.38*−0.38*
NDVI−0.77***−0.49*−0.51**−0.47*
Belonolaimus longicaudatus population density
Visual quality−0.73***−0.78***−0.75***−0.75***
NDVI−0.63***−0.79***−0.81***−0.73***
DOI: https://doi.org/10.21307/jofnem-2021-043 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
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Language: English
Page range: 1 - 14
Published on: Apr 1, 2021
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year
Keywords:
Root-knot nematode,
Sting nematode,
Turfgrass
Related subjects:
Life sciences,
Life sciences, other

© 2021 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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