Efecto de Hongos Entomopatogenos Sobre Larvas de Mosca Sierra (Monoctenus sanchezi Smith)

Bioinsecticidal effect of Tagetes erecta (Asteraceae) on the pine sawfly Zadiprion vallicola (Diprionidae)

“…Most studies on the allelopathic effects of various plant extracts on various pests focus on the application of laboratory extractions as the present research, which facilitates their interpretation and comparison (Singh, Batish & Kohli, 2001;Wang et al , 2001;Xu et al, 2012;Shetty et al, 2015). Following these ideas, the success of the T. erecta ethanol extracts in this study are similar to those reported with M. anisopliae, in both cases causing mortality greater than 0.95 (in proportion) in sawflies (Ordaz-Silva et al 2017). Similarly, 60 mg/L of leaves of Datura stramonium (known as toloache) cause a mortality of 52.2%, although unlike this, T. erecta does not have the inconvenience of being toxic to humans.…”

“…In the case of the control it was applied in 20 boxes. The number of live and dead larvae was recorded at 6 days and mortalities were recorded in corrected proportions relative to the control (Cibrián-Tovar et al, 1995;Ordaz-Silva et al, 2017). Lethal concentrations in which half of the larvae die (LC50) were calculated by applying the different extracts at their various concentrations using a probit regression (Aldana-Llanos et al, 2012;Joshi, 2015).…”

“…In the northern and western parts of Mexico, pine sawfly (Zadiprion vallicola Rohwer) has caused a loss of up to 15000 ha per zone in a single year (Hernández, 2012;Velez & Salas, 2012;Ordaz-Silva et al, 2017). It has been suggested during recent years, that biological control should be carried out with hyper parasite insects, mainly wasps, whose effect has been slow and inefficient (Hodge & Dvorak, 2000;García, 2012).…”

“…It has been suggested during recent years, that biological control should be carried out with hyper parasite insects, mainly wasps, whose effect has been slow and inefficient (Hodge & Dvorak, 2000;García, 2012). A successful case has been the use of the entomopathogenic fungus Metarhizium anisopliae, which at 1 × 10 8 conidia per millimeter of concentration has been used as an effective measure against sawfly Monoctenus sanchezi (Ordaz- Silva et al, 2017). As an alternative, extracts of plants with insecticidal effects can be tested for the control of Zadiprion vallicola, an option not used to date for forest pests (Krishna, Prajapati, Bhasney, Tripathi & Kumar, 2005).…”