Efficacy of Azadirachtin in the Integrated Management of the Root Knot Nematode on Short- and Long-Cycle Crops.

Activity of azadirachtin on phytoparasitic nematodes has been documented for some decades, but the relationship between its nematicidal efficacy and crop cycle length has not yet been clarified. This study aimed to assess the efficacy of an azadirachtin-based nematicide, for controlling the infestation of the root-knot nematode , on the short- and long-cycle crops, lettuce and tomato, respectively. Experiments on lettuce and tomato were carried out in a greenhouse infested by , including non-treated soil, or treated with the nematicide fluopyram, as controls.

Nematicidal Activity of a Garlic Extract Formulation against the Grapevine Nematode .

The nematicidal activity of garlic extracts is known on root-knot nematodes but never investigated on the grapevine nematode . In this study, the nematicidal activity of a commercial garlic extract formulate (GEF) was assessed on , both in vitro and in a pot assay. In the in vitro assays, mixed specimens of were exposed to a 0-4 mL L range of GEF concentrations, checking nematode immotility and mortality after 2, 4 or 8 h.

Synergistic Effects of , 1,3 Dichloropropene and Organic Matter in Controlling the Root-Knot Nematode on Tomato.

Environmental concerns raised by synthetic nematicides are encouraging integrated management strategies based on their combination with non-chemical control tools, such as biocontrol agents and/or organic amendments. In this study, the combination of the fumigant 1,3-dichloropropene (1,3-D) with a commercial formulation of the biocontrol agent (TH) and an organic fertilizer (OF) was investigated in two consecutive tomato crops for its effect on the root-knot nematode and plant growth and yield. The application of 1,3-D was only performed on the first crop, while TH and OF were provided to both crops.

Nematicidal Potential of Sulla ( L.) against the Root-Knot Nematode .

The content of nematicidal metabolites such as saponins, flavonoids and tannins in sulla ( L.) suggests its potential nematicidal activity. In this study, the biocidal activity of 62.

Antibiotic and Nematocidal Metabolites from Two Lichen Species Collected on the Island of Lampedusa (Sicily).

The antibiotic and nematocidal activities of extracts from two coastal lichen species collected on Lampedusa Island (Sicily), Nyl. and Ach., were tested.

Nematicidal Activity of Essential Oil from Lavandin ( × Emeric ex Loisel.) as Related to Chemical Profile.

Essential oils (EOs) from lavandin are known for a large spectrum of biological properties but poorly and contrastingly documented for their activity against phytoparasitic nematodes. This study investigated the toxicity of EOs from three different lavandin cultivars, Abrialis, Rinaldi Cerioni, and Sumiens, either to juveniles () and eggs of the root-knot nematode and to infective stages of the lesion nematode . The suppressive activity of treatments with EOs from the three lavandin cultivars in soil infested by was also investigated in a greenhouse experiment on potted tomato.

Selection of Bacterial Strains for Control of Root-Knot Disease Caused by .

Root-knot disease caused by leads to significant crop yield losses that may be aggravated by the association with pathogenic fungi and bacteria. Biological agents can be effectively used against the complex disease of root-knot nematode and pathogenic fungi. In this study, 35 bacterial strains were analyzed for their in vitro nematicidal, antagonistic and growth stimulation activities.

Chemical Composition and Nematicidal Properties of Sixteen Essential Oils-A Review.

Essential oils (EOs) can be a large source of new food-safe and healthy nematicidal products, due to their strong activity on crop pathogens and pests, including phytoparasitic nematodes, as well as to their low environmental persistence. This review summarizes the results from our 10-year studies on chemical features and nematicidal properties of 16 EOs with different botanical origins and compositions, i.e.

Chemical Identification of Specialized Metabolites from Sulla ( L.) Collected in Southern Italy.

Sulla ( L.) is a biennal forage legume originated from the Mediterranean basin and used for animal feeding due to its high forage quality and palatability. Several species of have been considered for their nutritional, pharmaceutical, and biological properties, and different applications have been reported, both for human consumption and animal nutrition.

Short-Time Impact of Soil Amendments with Plant Materials on Soil Nematofauna.

Soil amendments with plant materials from species are widely acknowledged for a suppressive effect on plant-parasitic nematodes but their impact on beneficial components of soil nematofauna is still unknown. A study on potted tomato was carried out to investigate the short-time effects on the overall nematofauna of dry biomasses from six different species, i.e.

Relationship between Chemical Composition and Nematicidal Activity of Different Essential Oils.

In this study, the relationship between nematicidal activity and chemical composition of ten essential oils (EOs) from different plant species was investigated both in in vitro assays on juveniles () and eggs of the root-knot nematode and in experiments on tomato in soil infested by . Nematode were exposed for 4, 8 or 24 h to 0.78-100 μg mL concentrations of each EO, whereas 24, 48 or 96 h exposures to 250, 500 and 1000 μg mL solutions were tested on egg masses.

Activity of Saponins from Species against Phytoparasitic Nematodes.

Content of bioactive saponins of species suggests that they may also exert, as previously demonstrated on , nematicidal properties exploitable for the formulation of new products for sustainable phytoparasitic nematode management. This study was addressed to highlight the bioactivity of saponins from five different species still poorly known for their biological efficacy, i.e.

Correction to: Nematicidal potential of Taraxacum officinale.

The original publication of this paper contains a mistake. Data on Table 1 under TR and TL column have been interchanged: that is compounds 1-12 and their amounts refer to TL; compounds 1-8 and related amounts refer to TR (see Fig. 1).

Nematicidal potential of Taraxacum officinale.

This study was aimed to investigate the activity of the Asteraceae species Taraxacum officinale against the root-knot nematode Meloidogyne incognita. Leaf and root extracts of T. officinale were tested in vitro at a range of 62.

Effect of water, soil temperatures, and exposure times on the survival of the sugar beet cyst nematode, heterodera schachtii.

ABSTRACT The effect of different combinations of temperatures and exposure times on the mortality of Heterodera schachtii eggs was assessed in two different experiments under laboratory conditions. In the first experiment, cysts in water were exposed to 25, 35, 37.5, 40, 42.