Red palm weevil (Rhynchophorus ferrugineus Olivier) infestation and its chemical control in Sindh province of Pakistan

Abstract

The survey on various parameters showed that the degree of orchard infestation fluctuated by time period/seasons, so attack of red palm weevil varied on different months of the year during the study period. It was observed that this insect pest had significantly higher (16%) infestation in the months of June, July and August, during experimental period. The least attack (8%) of the weevil was in the months of January, September, October, November and December in both the years (2007 and 2008). Place of infestation of weevil on date palm stem revealed that the pest infestation was mostly concentrated at the base of trunk (up to 50 cm height) and 75 to 82% of total weevil infestations were located at the base of palm trunk. Spirotetramat insecticide was found most efficient treatment to control red palm weevil infestation/damage, which recovered (43%) damaged date palm trees, followed by Fipronil (33%), Chlorpyrifos (26%) and Methidathion (19%) during the year 2007 and 2008.

A C-Type Lectin, RfCTL27, Activates the Immune Defense in the Red Palm Weevil Rhynchophorus ferrugineus (A.G. Olivier, 1791) (Coleoptera: Curculionidae: Dryophthorinae) by the Recognition of Gram-Negative Bacteria

“…Currently, the primary strategy for controlling this pest is through the use of chemical pesticides. Unfortunately, increasing evidence has shown that R. ferrugineus has strong resistance to a variety of commonly used pesticides [ 2 , 3 ]. In the perspective of sustainable development, it is emergent to invent a novel alternative management strategy to fight against this pest.…”

A Prophylactic Application of Systemic Insecticides Contributes to the Management of the Hibiscus Bud Weevil Anthonomus testaceosquamosus Linell (Coleoptera: Curculionidae)

“…Similarly, chlorantraniliprole exhibited an LC50 of 6 mg ai L −1 against boll weevil adults, Anthonomus grandis Boheman [14]. Red palm weevil larvae, Rhynchophorus ferrugineus Olivier, demonstrated susceptibility to spirotetramat, leading to a recovery of approximately 65% of damaged trees 60 days after being injected into the trunk [15]. Furthermore, when flupyradifurone was administered via trunk injection in oil palm hosts, it resulted in larval mortality of at least eight times higher than when applied through spraying [16].…”

Laboratory Evaluation of the Toxicity of Acetamiprid and Sulfoxaflor Against the Red Palm Weevil Rhynchophorus ferrugineus (Olivier)

“…These insecticides belong to different groups such as carbamate, organophosphate, organochlorine, phenylpyrazole, neonicotinoid and macrocyclic lactone (Abraham et al, 1998;Ajlan et al, 2000;Abo-El-Saad et al, 2001;Al-Rajhi et al, 2005;Al-Shawaf et al, 2010;Abo-El-Saad et al, 2011;Al-Jabr et al, 2013). Insecticides which have been tested in other laboratories and/or in field experiments worldwide include spirotetramat, azadirachtin, aluminum phosphide, methidathion and oxamyl against all stages of RPW (Cabello et al, 1997;Kaakeh, 2006;Llacer and Jacas, 2010;Shar et al, 2012;Shawir et al, 2014;Alhewairini, 2018).…”