| 摘要 |
The fumigation composition contains camphor as a butterfly repellent as well as disinfecting/antiseptic products in a quantity which is sufficient to exterminate the larvae of third age (L3) without producing important damages to the fumigated plant. The preferred disinfecting/antiseptic products are glutaraldehyde, glyoxal, formaldehyde, dialkyldimethylammonium chloride, alkylbenzyldimethylammonium chloride and mixtures thereof. Optionally it also contains surfactants and mineral or plant oil. The treatment method comprises the preparation of the composition which has been diluted from a concentrate of the same, and fumigating the plants preferably in the afternoon. The larvae are exterminated and the butterflies are repelled and do not lay anymore eggs. The method which goes against the present tendency to combat said plagues by means of biological methods is very efficient and has a persistent effect with the advantage of being less harmful for human kind and the environment. |
