Pest Management Science (2016) 72, 888-896

Sergio Molinari (2016)
Systemic acquired resistance activation in solanaceous crops as a management strategy against root-knot nematodes
Pest Management Science 72 (5), 888-896
Abstract:
BACKGROUND
Activators of systemic acquired resistance (SAR), such as salicylic acid (SA) and its synthetic functional analogues benzo(1,2,3)thiadiazole-7-carbothionic acid-S-methyl ester (BTH) and 2,6-dichloroisonicotinic acid (INA), were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita. Effects on plant fitness, nematode reproduction and root galling were screened in relation to different methods of application, to different applied dosages of chemicals and to different plant growth stages. Dosages applied to plants were in relation to plant weights. These chemicals were also tested for their possible nematotoxic activity in vitro.
RESULTS
Soil drenches of SA and INA and root dip application of SA and BTH inhibited nematode reproduction, at specific dosage ranges, without affecting plant growth. SA and INA were able to reduce root galling as well. Foliar sprays of both SA and BTH were ineffective against nematode attacks. Plants tolerated SA more than the other chemicals tested. BTH at elevated concentrations increased the mortality of nematode juveniles and reduced egg hatching in vitro.
CONCLUSIONS
SAR activators at concentrations suitable for different plant growth stages and applied by the proper method can possibly be included in IPM programmes for nematode management.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Sergio Molinari

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne incognita