Resistance of Pollen Beetle (Meligethes Aeneus F.) to Selected Active Substances of Insecticides in Poland

Abstract

Pollen beetle (Meligethes aeneus F.) (PB) is one of the most serious pest in rapeseed cultivations in Poland and in other European countries. The pest is known because of its high metabolic potency towards various toxins. Constant and strong selective pressure of different insecticides used to control this pest, has resulted in resistance of PB to many active substances. In connection with this situation, constant monitoring of pollen beetle susceptibility level to all recommended active substances of insecticides is necessary. The objective of the study was to determine the effectiveness of active substances, most often used in Western Poland for PB control. Resistance of pollen beetle to some pyrethroid active substances and organophosphorous insecticide -phosalone and high susceptibility to chlorpyrifos-ethyl was found. Resistance of pollen beetle requires constant insecticide susceptibility level monitoring and using IRM strategy.

Efficacy of different insecticides in controlling pollen beetle (Meligetes aeneus F.) in rapeseed crop

“…Węgorek et al (2009) recommended at least 3-5 chemical treatments to control M. aeneus in Poland, the first one at the plant development stage BBCH 51-54 using insecticides with chlorpyrifos as an active ingredient; the next one at the stage BBCH 55-59 using pyrethoid or neonicotinoid insecticides (e.g. acetamiprid) or, if two treatments are needed during that period, a compound not belonging to the groups used before.…”

“…They inferred that chlorpyrifos application at that stage was justified only when infestation was massive or resistance detected to pyrethroids or neonicotinoids. At the beginning of rapeseed flowering (beginning with stage BBCH 60), they recommended insecticides that include tau-fluvalinate or acetamiprid in order to rotate the insecticide chemical groups (Węgorek et al, 2009). The combination of chlorpyrifos and cypermethrin was found in that study to be the most effective at all locations during three years of experiment.…”

“…Besides pyrethroids, organophosphate insecticides are also used (Węgorek et al, 2009), as well as neonicotinoids (Wegorek, 2005). Years of repetitive application of insecticides, often not fully justified, have lead to reduced susceptibility or resistance of various populations of M. аeneus (Hansen, 2003), such as reported from different parts of Europe, e.g.…”

“…Years of repetitive application of insecticides, often not fully justified, have lead to reduced susceptibility or resistance of various populations of M. аeneus (Hansen, 2003), such as reported from different parts of Europe, e.g. France (Delorme et al, 2002), Germany Glattkowski et al, 2008;Müller et al, 2008), Denmark (Hansen, 2003(Hansen, , 2008, Switzerland (Derron et al, 2004;Philippou et al, 2010), Austria, Sweden (Kazachkova, 2007) and Poland (Węgorek, 2005;Węgorek et al, , 2007Węgorek et al, , 2009Wegorek andZamojska, 2006, 2008;Philippou et al, 2010). As pyrethroid insecticides are primarily used against this pest species in our country and globally, resistance to that group of insecticides has become most evident (Derron et al, 2004;Heimbach et al, , 2007Hansen, 2008).…”

The Effect of Insecticides on Pest Control and Productivity of Winter and Spring Oilseed Rape (Brassica napus L.)

“…beta -cyfluthrin, also tau-fluvalinate and neonicotinoid resistance were recorded, but just in some treatments, therefore several insecticide treatments are often necessary against pollen beetle (Wegorek et al, 2009). The results from Denmark show that no insecticide resistance to the organophosphate fenitrothion has developed among the M. aeneus.…”