Effect of an infusion of canelo and bitter lupin on Aegorhinus superciliosus adults

Abstract

R. Quintana, A. Palma, R. Rebolledo, and A. Aguilera. 2011. Effect of an infusion of canelo and bitter lupin on Aegorhinus superciliosus adults. Cien. Inv. Agr. 38(3): 397-403. A. superciliosus (Coleoptera: Curculionidae), known as "cabrito del maitén" (CM) among other names, is an important pest affecting fruit-bearing bushes in southern and central southern Chile. One means of control is the use of organically synthesized insecticides that target the adult, the application of which generally is disadvantageous because these insecticides have long-lasting residual effects and because spraying coincides with flowering and the harvest of the fruit. To complement other pesticides that are more degradable and selective and less harmful to the environment, this work studied the effect of an infusion of canelo buds (Drimys winteri) with leaves and stems of bitter lupin (Lupinus albus) on CM adults. The research evaluated mortality, anti-feeding effect and the percentage of eggs hatched with four treatments using these plants at concentrations of 10, 20, 40 and 100% infusion, plus a control with no application. Each treatment was replicated ten times. The infusions obtained at a proportion of 1:1 (w/v) exhibited no effect on the variables studied at a significance of 5%, with the exception of its effect on egg hatching, which exhibited an apparent direct relation with the canelo infusion and an inverse relation with the aqueous extract of lupin. The results indicate that the lupin infusion may have an insectistatic effect on the reproduction of CM.

Unraveling the Biosynthesis of Quinolizidine Alkaloids Using the Genetic and Chemical Diversity of Mexican Lupins

“…Each lupin species produces a characteristic pattern of QAs with few major compounds and several others as traces [2][3][4]. The chemical properties and insecticidal, antimicrobial, and medicinal activities of QAs are of interest in the chemical, biotechnological, and pharmaceutical industries [5][6][7][8][9][10][11][12][13][14][15].…”

Variabilidad genética en poblaciones de Aegorhinus superciliosus (Coleoptera: Curculionidae), en Maytenus boaria (Celastrales: Celastraceae) de Chile

“…Exotic fruit trees in this part the country have recorded the highest land use growth over the last decades generating, an agro-ecosystem imbalance, favoring the colonization of A. superciliosus (Ellena et al 2012). This insect pest has affected the whole shrub fruit group in south-central Chile and particularly European hazel (Corylus avellana L.) and blueberry (Vaccinium corymbosum L.) (Quintana et al 2011;Zavala et al 2011;Rebolledo et al 2012).…”

Effects of extracts from Maytenus on Aegorhinus superciliosus (Coleoptera: Curculionidae) and Hippodamia convergens (Coleoptera: Coccinellidae)

“…They also have a limited effect on beneficial insects and are rarely toxic to mammals and humans, while their different action mechanisms mean that the insects generally develop little resistance to them (Huerta et al 2010). The majority of plant species used in protection by plant extracts present an insect gowth regulators rather than an insecticidal effect, as they inhibit the insects' normal development (Quintana et al 2011). In general, the protective effect of natural compounds is due mainly to the fact that they repel insects, regulate their growth or discourage them from feeding or laying their eggs (Isman 2000;Silva et al 2002;Cetin et al 2004;Huerta et al 2010).…”