Abamectin Efficacy on the Potato Cyst Nematode Globodera pallida

Autor: Pierluigi Caboni, Nicola Sasanelli, Maria Teresa Melillo, Pasqua Veronico, Ion Toderas, Stefan Rusu, Elena Iurcu-Straistaru
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Plants 9 (2020): 1–13. doi:10.3390/plants9010012
info:cnr-pdr/source/autori:Sasanelli N., Toderas I., Veronico P., Iurcu-Straistaru E., Rusu S., Melillo M.T., Caboni P./titolo:Abamectin Efficacy on the Potato Cyst Nematode Globodera pallida/doi:10.3390%2Fplants9010012/rivista:Plants/anno:2020/pagina_da:1/pagina_a:13/intervallo_pagine:1–13/volume:9
Plants
Volume 9
Issue 1
Popis: The potato cyst nematode Globodera pallida is a major pest of the potato crop. Abamectin is a biological pesticide showing high nematicide activity, but its efficacy to control G. pallida has not been investigated to date. In this study, combination of different abamectin concentrations ranging from 1.125 to 36 µ
g/mL x exposure times from 24 to 384 h were tested on the nematode in a hatching test. Abamectin induced mortality with LD50 value in the range of 13.23 (after 24 h) to 2.90 µ
g/mL (after 384 h). A glasshouse experiment was also performed in pots filled with soil infected with G. pallida in the presence of sprouted potato tubers cultivar &ldquo
Spunta&rdquo
Abamectin at 4.5, 9.0, 18.0 and 36.0 µ
g/mL was used in comparison with nematicide fosthiazate. The doses of 18 and 36 µ
g/mL significantly reduced number of eggs, juveniles, cyst/g soil and reproduction rate in comparison to both untreated control and fosthiazate treatment. Soil applications of abamectin provided significant G. pallida control with LD50 and LD99.9 of 14.4 and 131.3 µ
g/mL, respectively. These results indicate the efficacy of abamectin to control G. pallida on potato crops and its potential use in organic agriculture or in an integrated pest management program.
Databáze: OpenAIRE