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iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
iNaturalist:
Red oak spotting slows down as fall colors fade
iNaturalist:
This fuzzy forest moss is suddenly everywhere in Canada
iNaturalist:
Milkweed sightings stay high across Canada as autumn sets in
Neem, mustard, and black pepper extracts kill beetles that ruin stored cowpeas
OpenAlex · 2026-09-25
Oils pulled from neem seed kernel, mustard, black pepper, annona and groundnut seeds all killed adult pulse beetles, a major pest of stored cowpeas. Neem was used as the benchmark, so the study offers a plant-based alternative to synthetic pesticides for protecting stored beans.
1
Five plant ether extracts (neem seed kernel, mustard, black pepper, annona, groundnut) were toxic to adult Callosobruchus maculatus.
2
Relative toxicity was calculated using neem seed kernel extract as the standard reference product.
3
Probit analysis was used to estimate LC50 values, the dose that kills half the beetles, for comparing the extracts.
