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Acute toxicity of pesticides to honey bees

Honey bees are beneficial arthropods playing a key role in pollinating wild and crop plants. Unfortunately, during their foraging activity they can be exposed to pesticides. The members of the colony can also be poisoned indirectly by contaminated food brought back to the hive by the foragers. The aim of this chapter is to discuss some aspects of the acute toxicity of pesticides to Apis mellifera. [Pg.56]

Broadly speaking, pesticides include many different chemical structures and are used to control pest plants and animals. They are generally classi-hed according to their target as follows insects (insecticides), nematodes (nematicides), mollusks (molluscicides), weeds (herbicides), bacteria (bactericides), fungi (fungicides), and so on. [Pg.56]

Pesticides act in two ways to reduce bee populations. First, many pesticides necessary in crop production are highly toxic to honey bees. In this category, we principally find insecticides. Second, the use of herbicides reduces the acreages of attractive plants for the bees to forage on. Pesti- [Pg.56]

It is obvious that the nature of the toxicological effects, the persistence, and more generally the environmental behavior of the pesticides depend on their physicochemical properties (e.g. water solubility, 1-octanol/water partition coefficient (logP), vapor pressure) [4-9]. [Pg.57]

The aim of this chapter is to discuss some basic aspects of the acute toxicity of pesticides to the honey bee Apis mellifera). [Pg.57]


Laboratory tests offer the most convenient way for rapidly estimating the toxicity of pesticides to honey bees but they do not reflect the reality observed in the fields. Consequently, different methodologies have been developed to estimate the acute toxicity of pesticides to honey bees under more realistic environmental conditions (Chapter 3). Thus, in France, the... [Pg.57]

Relative acute toxicity of pesticides to honey bees based on laboratory and field tests... [Pg.60]

Some general models for other endpoints have been developed. Devillers et al. [76] addressed the acute toxicity of pesticides on honey bee, achieving good results with one hundred pesticides. Some studies exist that use classifiers. Pintore et al. [77] developed a model to classify pesticides, in general, with the lethal dose toward rat. Classifiers are more typical in toxicity studies, and genotoxicity in particular. Use of a classifier can be a simpler approach compared to regression models, since the prediction does not need to be as precise when only prediction of a toxicity class (e.g., high, medium, low) is involved,... [Pg.640]

Table 7.1 Acute toxicity of pesticides to four non-Apis bee species and honey bees (topical LD50 (jxg/bee))... [Pg.113]

Acute toxicity tests similar to those used to test chemical pesticides, in which 10-day-old adult honey bees were either fed or injected with cowpea trypsin inhibitor (CpTI), showed that an oral dose of 11 jjig per bee and an injected dose of 0.5 jig per bee had no effect on bee survival after 24 or 48 hours [68]. [Pg.298]


See other pages where Acute toxicity of pesticides to honey bees is mentioned: [Pg.56]    [Pg.60]    [Pg.64]    [Pg.56]    [Pg.60]    [Pg.64]    [Pg.106]    [Pg.68]    [Pg.57]    [Pg.60]    [Pg.67]    [Pg.190]   


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