يعمل الثوم على طرد البعوض ويمنعه من التزاوج أو وضع البيض. ويعود الفضل في هذه التأثيرات إلى مركب كبريتيد ثنائي الأليل، مما يوفر أساساً علمياً لمعتقد ساد لقرون.
لطالما اعتبر الثوم طارداً طبيعياً للبعوض على مدى قرون، حيث يُعتقد أن رائحته النفاذة تبعد الحشرات التي تنقل أمراضاً مثل حمى الضنك والملاريا.
من إعداد الذكاء الاصطناعي صورة مولدة بواسطة الذكاء الاصطناعي
Researchers from institutions including Sweden's Swedish University of Agricultural Sciences (SLU) have discovered why certain women, especially pregnant ones, attract mosquitoes. They identified 27 chemical compounds in scent samples, with octenol playing a key role. The finding could improve mosquito traps and repellents.
Alex Toussaint and Clovis Piedallu have created a 40-gram autonomous drone that detects and eliminates mosquitoes in flight using their acoustic signature.
من إعداد الذكاء الاصطناعي
Dry winters and springs continue to suppress mosquito populations in Sweden. Researchers at the National Veterinary Institute predict another season with unusually few mosquitoes.
Researchers have developed a targeted treatment using the chemical bistrifluron to control drywood termite infestations. The approach interferes with the insects' molting process and achieved high mortality rates in laboratory tests.
من إعداد الذكاء الاصطناعي
Artificial streetlights are causing thousands of woodlice to form large circular "death spirals" in northern Israel. The behavior was documented by researchers from The Hebrew University of Jerusalem. It marks the first known instance of such collective movement in these ground-dwelling isopods.
Researchers have discovered that distantly related butterflies and moths have used the same two genes, ivory and optix, for more than 120 million years to create similar warning colors on their wings. This finding suggests evolution can follow predictable genetic pathways rather than being entirely random. The study focused on species from South American rainforests.