Control químico del ácaro rojo de las palmas Raoiella indica Hirst (Acari: Tenuipalpidae)

Abstract

El objetivo del trabajo fue comparar la efectividad biológica de 19 acaricidas comerciales para el control de poblaciones de Raoiella indica Hirst en Tabasco, México. Los acaricidas se asperjaron sobre el follaje de plantas de cocotero híbrido (Alto del Pacíco x Enano Malayo), previamente infestadas con R. indica, en dosis y frecuencia de aplicación recomendadas. Se registró el número de ácaros que permanecieron vivos en la supercie abaxial del follaje a los 2, 7, 14 y 21 d después de la aplicación. Los acaricidas bifentrina, acequinocyl, bifenazate, spiromesifen, amitraz, fenpyroximate, clorfenapir, azufre, clorhidrato de formetanato, milbemectina, propargite y fenazaquin fueron los más efectivos, al reducir las poblaciones de R. indica en más del 95% a los 7 d después de la aplicación. Se propone el uso secuenciado de estos acaricidas en la región, basándose en sus modos de acción, para un control químico racional de la plaga.

OVIPOSITION OF Bactericera cockerelli (SULC) (HEMIPTERA: TRIOZIDAE) ON Capsicum chinense (JACQ) TREATED WITH SPIROMESIFEN OR SPIROTETRAMAT

“…Gharalari et al (2009) observed that when treated the upper part of potato (Solanum tuberosum L.) leaf with spiromesifen, the individuals of B. cockerelli living underside were not affected, indicating that this insecticide has contact activity. Also, Chauhan et al (2018) and Luna-Cruz et al (2015) argued that spiromesifen has contact activity, has no movement in the plant and is of low persistence; however, spiromesifen has proven effective in reducing Raoiella indica Hirst populations by more than 95 % at 7 d after application (Correa-Méndez et al, 2018). Liu (2004) documented that spiromesifen is more toxic to adults than to eggs in whitefly feeding on melon (Cucumis melo L.) and cabbage (Brassica oleracea L.) plants; moreover, the nymphs that emerged from eggs treated with spiromesifen were unable to molt successfully.…”

Spatial Modeling of Red Spider Mite Oligonychus punicae (Acari: Tetranychidae) in Avocado Crop

“…This pest is distributed in North and South America, as well as in European and Asian countries (Chávez-Acosta 2020). Tradi-tionally, to control this pest, chemical products were utilized, however they have lost their efficacy due to misuse, which has resulted in the development of resistance (Correa-Méndez et al 2018).…”

“…Tradi- 2023 -Florida Entomologist -Volume 106, No. 4 tionally, to control this pest, chemical products were utilized, however they have lost their efficacy due to misuse, which has resulted in the development of resistance (Correa-Méndez et al 2018).…”

Mortalidade de Raoiella indica Hirst, 1924 (Acari: Tenuipalpidae) sob ação, in vitro, de acaricidas

“…Dessa forma, há necessidade urgente de medidas para o controle do ácaro-vermelhodas-palmeiras, o que tem sido um grande problema no Brasil. Embora existam diversos produtos químicos eficientes contra R. indica em vários países (Correa-Méndez et al, 2018;Rodrigues & Peña, 2012;Sánchez-Vázquez et al, 2017;Van Leeuwen et al, 2015), inclusive no Brasil (De Assis, De Morais, & Gondim, 2013), nenhum deles encontra-se registrado junto ao Ministério da Agricultura, Pecuária e Abastecimento para o controle dessa praga em cultivos neste país (Agrofit, 2020). Considera-se remota a probabilidade de se abolir o uso de produtos químicos contra ácaros fitófagos em cultivos agrícolas em produção (Van Leeuwen et al, 2015), por se tratar de um dos métodos capazes de controlar grandes surtos populacionais desses artrópodes (Fountain, Harris, & Cross, 2010).…”