Chinese experts from the field of agriculture and forestry tried to catch the Drosophila fly on the "beer bait" and successfully coped with the task.
Research took place at an agricultural university in Fujian. The object of the experiments was the fly Drosophila Suzukii - a long-standing enemy of farmers around the world.
This Japanese fly quickly mastered in the lands of Korea and China, and in the 80s expanded its horizons to the Hawaiian Islands. For thirty years, Drosophila Suzuki made her way through the United States to Europe, which caused considerable damage to the lands of Belgium, Spain, France and Italy. "In the state of California alone in 2010, the damage from the invasion of Drosophila Suzuki on local plantations amounted to about $ 40 million," Chinese developers also add that they somehow managed to find a council for a daring fly.
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“Earlier in our country, they were sure that the best trap for Drosophila Suzuki was a container with apple cider vinegar,” the scientists say. “But we conducted a series of experiments and found that yeast is much more attractive to flies: Suzuki instinctively rush to the smell of beer to provide their larvae with protein (which, by the way, is a lot in beer sediment).
The researchers also revealed a curious and extremely useful fact for farmers: most often Suzuki fall into the trap in the morning, between 8 and 10 hours, and after lunch - from 14 to 16 hours.
“Laboratory research is over,” the scientists say. “It's time to go out into the fields and gardens to check the bait in the wild!”