He lemon Not only does it serve to flavor or clean surfaces, it can also become a natural ally against cockroaches. Thanks to its high content of limonenea compound present in the peel and juice, this fruit gives off an aroma that is unpleasant for many insects, including cockroaches.
According to a study published in ResearchGatecitrus oils, including lemon, lime, and orange, showed a repellent activity from 70% to 96% in laboratory tests carried out with different species. The effect depends on the concentration and the form of application, but its effectiveness is mainly due to the volatile compounds of the essential oil.
What experts say about lemon and citrus
According to a scientific review available at PubMed Central (PMC)essential oils derived from citrus fruits contain phytocompounds as limonene y citralwhich interfere with the insect olfactory receptors. This causes them to avoid areas treated with these aromas, reducing their presence in closed spaces.
The middle HouseDigest also notes that lemon juice and peel can be used as a homemade repellent to prevent the entry of cockroaches, especially when placed in strategic points such as under the sink or near entrances.
However, M&M Pest Control warns that the effect of lemon is limited in timesince their compounds evaporate quicklyso it must be applied frequently to maintain its effectiveness.
How to apply lemon to keep cockroaches away
To make the most of lemon’s properties, experts recommend following some simple steps at home:
- Clean surfaces with a mixture of lemon juice and hot water to eliminate traces of grease and odor that attract cockroaches.
- Place fresh peels in key areas such as corners, behind appliances and under the sink.
- Use lemon essential oil diluted in water and spray on door frames, windows or cracks.
- Combine with baking soda or vinegar to reinforce its disinfectant effect and neutralize odors.
- Replace the peels or reapply the mixture every two dayssince limonene loses effectiveness over time.
How effective is lemon really?
Although scientific trials support its repellent action, M&M Pest Control clarifies that the lemon does not eliminate pests completely. Its main function is to prevent the appearance of cockroaches by reducing their interest in certain spaces. In addition, its effect depends on maintaining constant cleanliness and eliminating sources of food or moisture.
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