Efikasnost različitih formulacija rodenticida na bazi Bromadiolona u suzbijanju štetnih glodara u lucerki

In order to compare the efficacy of different formulations of Bromodiolone-based rodenticides against mixed populations of common vole (Microtus arvalis Pall) and striped field mouse (Apodemus agrarius) in alfalfa, the testing was conducted using the standard EPPO method at the locations of Belegiš and Putinci, in summer of 2010. The experimental design consisted of a completely randomized block with four replicates and with the main plot area of 400 m2. The abundance and distribution of small rodents populations at the experimental plots were determined on the basis of appearance and spatial distribution of active holes. The efficacy of different rodenticide formulations was evaluated according to the number of active holes 7, 14, and 28 days after treatment (DAT), using the Henderson- Tilton's formula. The testing was done with the commercially available rodenticide formulations: AB (grain-based baits), RB (ready-to-use baits - pouches) and PT (pellets), containing 0.005% of active ingredient Bromodiolone. The monofactoral analysing of variance did not result in any statistically significant difference in efficacy of rodenticide formulations 7 DAT at the Belegiš locality and 7 and 14 DAT at the Putinci locality. But, the statistically significant difference in efficacy of rodenticide formulations was observed at Belegiš locality on the 14th day of the experiment. Also, at the end of experiment, the efficacy of rodenticide formulations significantly varied at both locations. Nominally, the lowest efficacy of 72.5% was exhibited by AB formulation, while the average efficacy of RB and PT formulations against mixed populations of common vole and striped field mouse in alfalfa was 88.3% and 77.7%, respectively. It is concluded that the use of RB formulation of Bromodiolone-based rodenticides can improve the control of rodent pests in alfalfa.Radi poređenja efikasnosti različitih formulacija rodenticida na bazi bromadiolona u suzbijanju mešanih populacija poljske voluharice i poljskog miša u usevu lucerke, prema standardnoj metodi EPPO izvedeni su eksperimenti u proleće 2010. godine na lokalitetima Belegiš i Putinci. Eksperiment je postavljen po potpuno slučajnom blok sistemu, sa četiri ponavljanja i veličinom osnovne parcele od 400 m2. Na osnovu izgleda i prostornog rasporeda aktivnih rupa utvrđena je zastupljenost vrsta sitnih glodara i njihova brojnost na eksperimentalnim parcelama. Efikasnost formulacija rodenticida je ocenjivana prema formuli Henderson & Tilton, na osnovu broja aktivnih rupa, sedam, 14 i 28 dana posle tretmana. Ispitivane su komercijalno dostupne formulacije rodenticida: AB (zrnasti mamak), RB (gotov mamak za upotrebu - kesice) i PT (pelete), sa sadržajem 0,005% aktivne materije bromadiolona. Jednofaktorijalnom analizom varijanse nije utvrđena statistički značajna razlika između efikasnosti formulacija rodenticida posle sedam dana na lokalitetu Belegiš i posle sedam i 14 dana na lokalitetu Putinci. Na lokalitetu Belegiš, 14-og dana od početka eksperimenta postojala je statistički značajna razlika između efikasnosti formulacija rodenticida. Takođe, i na kraju eksperimenta, efikasnost formulacija rodenticida se statistički značajno razlikovala na oba lokaliteta. AB formulacija rodenticida imala je nominalno najnižu prosečnu efikasnost od 72,5%, dok je prosečna efikasnost RB i PT formulacije bila viša, 88,3%, odnosno 77,7% u suzbijanju mešanih populacija poljske voluharice i poljskog miša u lucerki. Upotrebom RB formulacije rodenticida na bazi bromadiolona moguće je unaprediti program zaštite lucerke od štetnih glodara