Impact of agrochemicals on non-Apis bees

Tasei, J. N.; Devillers, James; Pham-Delègue, M.H.

doi:10.1201/9780203218655.ch7

Cited by 27 publications

(25 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Given the ecological and economic importance of bees as pollinators of wild flowers and cultivated plants (Kevan, 1991;Southwick and Southwick, 1992), it is surprising that our knowledge on bee toxicity is so fragmentary and mostly restricted to one species, the honey bee, Apis mellifera L. (Apidae) (Johansen and Mayer, 1990). Information on pesticide toxicity to non-Apis bees is dismally scarce, and limited to a handful of species managed for crop pollination (review in Taséi, 2002). A common first step in bee toxicity studies is the establishment of LD 50 (median lethal dose) values, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…We tried to feed individual O. lignaria known amounts of sugar solution using some of the methods available from the literature (Taséi, 2002), but our success rate (percent individuals that would feed) was very low. Thus, we devised a new method, which we tested in comparison to the two most commonly used methods available (Johansen et al, 1984;van der Steen et al, 1996;Bortolotti et al, 2002;Patetta et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A method to feed individual bees (Hymenoptera: Apiformes) known amounts of pesticides

et al. 2003

View full text Add to dashboard Cite

-We devised a simple method ("flower") to feed bees individually, and compared it with two other methods commonly used ("film canister" and "glass vial"). We tested the three methods on two solitary species, Osmia lignaria and Megachile rotundata, and one social species, Apis mellifera, under four different light regimes (natural, artificial, plant growth and darkness). The flower method was the most effective for all three bee species: 90-95% of the bees fed under natural light, 80-95% under artificial light, 75-100% under plant growth light, and 45-70% in darkness. Percent success was 0-50% with the film canister method, and 0-60% with the glass vial method. The flower method may allow more comprehensive future evaluation of pesticide effects on bees. oral toxicity test / individual feeding / Osmia lignaria / Apis mellifera / Megachile rotundata

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A method to feed individual bees (Hymenoptera: Apiformes) known amounts of pesticides

et al. 2003

View full text Add to dashboard Cite

show abstract

“…Wild bee declines have, in part, been attributed to insecticide use (Kearns et al 1998, Westerkamp and Gottsberger 2000, Tasei 2002). Bees maybe unintentionally exposed to insecticides during or after spray application while foraging in crops and nesting in hedgerows adjacent to treated Þelds, or by consuming insecticide residues in nectar and pollen from treated crops.…”

mentioning

confidence: 99%

Impact of Currently Used or Potentially Useful Insecticides for Canola Agroecosystems on Bombus impatiens (Hymenoptera: Apidae), Megachile rotundata (Hymentoptera: Megachilidae), and Osmia lignaria (Hymenoptera: Megachilidae)

2009

View full text Add to dashboard Cite

Pest management practices may be contributing to a decline in wild bee populations in or near canola (Brassica napus L.) agroecosystems. The objective of this study was to investigate the direct contact toxicity of Þve technical grade insecticidesÑimidacloprid, clothianidin, deltamethrin, spinosad, and novaluronÑ currently used, or with potential for use in canola integrated pest management on bees that may forage in canola: common eastern bumble bees [Bombus impatiens (Cresson); hereafter bumble bees], alfalfa leafcutting bees [Megachile rotundata (F.)], and Osmia lignaria Cresson. Clothianidin and to a lesser extent imidacloprid were highly toxic to all three species, deltamethrin and spinosad were intermediate in toxicity, and novaluron was nontoxic. Bumble bees were generally more tolerant to the direct contact applications Ͼ O. lignaria Ͼ leafcutting bees. However, differences in relative toxicities between the three species were not consistent, e.g., whereas clothianidin was only 4.9 and 1.3ϫ more toxic, deltamethrin was 53 and 68ϫ more toxic to leafcutting bees than to bumble bees and O. lignaria, respectively. Laboratory assessment of direct contact toxicity, although useful, is only one measure of potential impact, and mortality under Þeld conditions may differ greatly depending on management practices. Research conducted using only honey bees as the indicator species may not adequately reßect the risk posed by insecticides to wild bees because of their unique biology and differential susceptibility. Research programs focused on determining nontarget impact on pollinators should be expanded to include not only the honey bee but also wild bee species representative of the agricultural system under investigation.

show abstract

“…In fact, Taséi (1977) and Johansen et al (1983) recommend using 1-to 2-day-old bees for toxicity studies with M. rotundata. The toxicity of pesticides to bees is age-dependent (Ladas, 1970;Guez et al, 2001;Taséi, 2002). Using newly emerged bees in acute toxicity studies would allow testing bees of the same age, and monitoring emergence would allow investigating age-dependent effects of pesticides on both solitary and social bees.…”

Section: Experiencementioning

confidence: 99%

“…Group feeding methods, used with Apis mellifera L. (Apidae) in laboratory acute toxicity studies (OEPP/EPPO, 1992, 2001, cannot be applied to most other bee species, which, like O. lignaria, do not perform trophallaxis. In fact, acute toxicity studies on non-Apis bees often omit oral tests because it is difficult to feed individual bees known amounts of test solutions (Taséi, 2002). We therefore devised a simple method to feed bees individually known amounts of pesticides ("flower method"; Ladurner et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a standard artificial flower design to feed individual bees known amounts of pesticides

et al. 2005

View full text Add to dashboard Cite

-We investigated the possibility of feeding individual bees known amounts of pesticides on a standard artificial flower with or without scent. We tested experienced and naive (without foraging experience) Osmia lignaria and Megachile rotundata females, and experienced Apis mellifera foragers, and trained (exposed to the artificial flower for 24 h) and untrained individuals of the three species. We also fed untrained individuals of all three species with feeding units made with natural flowers (Ladurner et al., Apidologie 34 (2003) 597-602). Feeding success on artificial flowers was lower (0-50%) for O. lignaria and M. rotundata, than A. mellifera (70-97%). Training improved feeding success in O. lignaria and A. mellifera, but not M. rotundata. Experience improved feeding success in O. lignaria, but not M. rotundata. Scent had no effect on feeding success for any of the three species. Feeding success with the natural flower method was high for the three species (87-90%).oral toxicity test / artificial flower / Osmia lignaria / Apis mellifera / Megachile rotundata

show abstract

Impact of agrochemicals on non-Apis bees

Cited by 27 publications

References 34 publications

A method to feed individual bees (Hymenoptera: Apiformes) known amounts of pesticides

A method to feed individual bees (Hymenoptera: Apiformes) known amounts of pesticides

Impact of Currently Used or Potentially Useful Insecticides for Canola Agroecosystems on <I>Bombus impatiens</I> (Hymenoptera: Apidae), <I>Megachile rotundata</I> (Hymentoptera: Megachilidae), and <I>Osmia lignaria</I> (Hymenoptera: Megachilidae)

Evaluation of a standard artificial flower design to feed individual bees known amounts of pesticides

Contact Info

Product

Resources

About