Evaluation of some additives for acceptability with zinc phosphide bait against rodent

Criteria for Rodent Bait Selection

World food shortages become more acute each year, and all too often, rodents are present to take their unwarranted share. To counter this, we must refine our rodent control methods to make them more efficient. To this end, correct bait selection is essential. Grain baits must be selected for purity and acceptability. Grain alterations must be carefully controlled, as well as any additives. Mult...

The Bait Surcharge Program: Research Improves Zinc Phosphide Use for Vole Control in Alfalfa

This paper describes several unexpected benefits of rodenticide-registration research funded by The California Bait Surcharge Program. An enclosure-type study was conducted to determine efficacy of single, preand test-bait broadcasts (10 lb./ac.) of 0% and 2% zinc phosphide (ZqP,, CAS #1314-84-7) steam-rolled-oat (SRO) groats to control voles (Microtus spp.) in alfalfa (Medicago sariva). Unexpe...

Consumption of Zinc Phosphide-treated, Bromethalin-treated, and Untreated Oats by Prairie Dogs at Bait Stations

A CASE oF IntoxICAtIon WItH zInC PHoSPHIDE

This paper presents a case of poisoning of a male whose death occurred about 3 hours after onset of pain in his abdomen. The autopsy revealed semi-liquid contents in the stomach “with a distinct odour of carbide”. Post-mortem material together with a public prosecutor’s decision (request) for an expert opinion on the presence of carbide (calcium carbide, CaC2) or any other poisons in the stomac...

Zinc Phosphide Poisoning

Zinc phosphide has been used widely as a rodenticide. Upon ingestion, it gets converted to phosphine gas in the body, which is subsequently absorbed into the bloodstream through the stomach and the intestines and gets captured by the liver and the lungs. Phosphine gas produces various metabolic and nonmetabolic toxic effects. Clinical symptoms are circulatory collapse, hypotension, shock sympto...