A mini-review of essential oils in the South Pacific and their insecticidal properties

Chand, Ravneel; Jokhan, Anjeela D.; Gopalan, Romila D.

doi:10.13128/ahs-20833

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Antixenosis, defined as the modification of herbivore behaviour by plant factors, which results in the inability of a plant to serve as a host (Kogan and Ortman, 1978;Kordan et al, 2019), is a well-known factor determining host plant resistance. Terpenoids and other volatile compounds have well-known antixenotic activities in different plant-insect interactions (Chand et al, 2017;Koul, 2008;Messchendorp et al, 1998). Antixenosis may represents a valuable factor to be considered in the development of grapevine resistance against S.…”

Section: Discussionmentioning

confidence: 99%

“…Terpenoids and other volatile and non volatile compounds have well-known antixenotic activities in different plant-insect interactions (Chand et al, 2017;Koul, 2008;Messchendorp et al, 1998). Antixenosis may represent a valuable factor to be considered in the development of grapevine resistance against S. titanus, de facto causing a reduction in the inoculation efficiency of FDp.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Scaphoideus titanus Ball feeding behaviour on three grapevine cultivars with different susceptibilities to Flavescence dorée

Ripamonti

Maron

Cornara

et al. 2021

Preprint

View full text Add to dashboard Cite

Scaphoideus titanus (Ball) is a grapevine-feeder leafhopper, and the most important vector of Flavescence dorée of grapevine (FD), a disease associated with phytoplasmas belonging to ribosomal subgroups 16Sr-V–C and –D. FD is a major constraint to viticulture in several European countries and, so far, its control has relied on roguing of infected plants and insecticide applications against the vector. Detailed knowledge on different levels of the multifaceted phytoplasma-plant-vector relationship is required to envisage and explore more sustainable ways to control the disease spread. In the present work, S. titanus feeding behaviour was described on three grapevine cultivars: Barbera (susceptible to FD), Brachetto, and Moscato (tolerant to FD) using the Electrical Penetration Graph (EPG) technique. Interestingly, no differences were highlighted in the non-phloem probing phases, thus suggesting that the tested cultivars have no major differences in the biochemical composition or structure of the leaf cuticle, epidermis or mesophyll, that can affect the first feeding phases. On the contrary, the results showed significant differences in leafhopper feeding behaviour in terms of the duration of the phloem feeding phase, longer on Barbera and shorter on Brachetto and Moscato, and of the frequency of interruption-salivation events inside the phloem, higher on Brachetto and Moscato. These findings indicate a preference for the Barbera variety, that appears a more suitable hosts for the leafhopper. Scaphoideus titanus feeding behaviour on Barbera correlates with an enhanced FDp transmission efficiency, thus explaining, at least in part, the higher susceptibility of this variety to FD. The mechanisms for the non-preference for Brachetto and Moscato are discussed, and a possible antixenosis is hypothesized. We propose that breeding for resistance against FD should take into account both plant traits associated with the response to the phytoplasmas and to the vector.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Scaphoideus titanus Ball feeding behaviour on three grapevine cultivars with different susceptibilities to Flavescence dorée

Ripamonti

Maron

Cornara

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

Insecticidal activity of ring-fluorinated benzyl acetone analogs in Queensland fruit fly, a softer class of insecticides

et al. 2020

View full text Add to dashboard Cite

Cinnamomum camphora var. linaloolifera essential oil on pest control: Its effect on Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

Vicenço

Silvestre

Pauletti

et al. 2021

RSD

View full text Add to dashboard Cite

This study evaluated the insecticidal effect of Cinnamomum camphora var. linaloolifera essential oil and its major compound, linalool, on Trialeurodes vaporariorum. Essential oil treatments were applied at 0.5, 1.0, 1.5, and 2.0% v/v on eggs, nymphs, and adult individuals and linalool equivalent concentrations on nymphs of T. vaporariorum. The negative controls water and Tween-80® (0.5% v/v) and a positive control (spiromesifen 0.05% v/v for eggs and nymphs; pymetrozine 0.04% m/v for adults) were also used. The essential oil of C. camphora at 2.0% v/v caused egg mortality of 49.7%; same concentration caused the highest nymph mortality (88.5%). For adults, the essential oil at 2.0% v/v caused the highest mortality (40.0%) after 48 h, not changing from 48 to 72 h. The essential oil and linalool performed similarly relative to the nymphs, whose mortalities have not differed statistically, with exception of the concentrations of 0.5 and 1.0% v/v. Regarding the chemical control, the concentration of 2.0% v/v has had similar mortality for nymphs; for eggs and adults, the essential oil caused lower mortality (49.4 and 40.0%) than the synthetic pesticide (65.0 and 72.0%). The essential oil of C. camphora may be a potential control alternative for T. vaporariorum, especially regarding the Integrated Pest Management (IPM) practices.

show abstract

A mini-review of essential oils in the South Pacific and their insecticidal properties

Cited by 3 publications

References 0 publications

Scaphoideus titanus Ball feeding behaviour on three grapevine cultivars with different susceptibilities to Flavescence dorée

Scaphoideus titanus Ball feeding behaviour on three grapevine cultivars with different susceptibilities to Flavescence dorée

Insecticidal activity of ring-fluorinated benzyl acetone analogs in Queensland fruit fly, a softer class of insecticides

Cinnamomum camphora var. linaloolifera essential oil on pest control: Its effect on Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

Contact Info

Product

Resources

About