Have you been relentlessly annoyed by the energy and time, let alone the money, that you put into totally eliminating Japanese knotweed from your garden, just to find the spot green and healthy with fresh sprouts one or two days after? This weed has been a great dilemma in the UK for sometime. Not long after its launch in the 1800’s, the plant has invaded many of United Kingdom’s land area and wastelands. It has posed a real danger to the native plant species since they are extremely resilient to several methods of eradication. They crowd out native plants and lower the species variety in the area.
There have been very many ways employed to manage the spread and growth of the invasive Japanese knotweed, from herbicides to painstakingly removing the plants to adding its real parasite, Aphalara itadori. These psyllids, as they are named, are sap-sucking insects which are likewise belonging to Japan from where the weed also came from. Aphalara itadori is called jumping plant louse. The premeditated use of this psyllid is supported by scientific investigations from CABI and yet not everyone are amenable to the idea.
The study has spanned some six years, analyzing more than two hundred preventive measures and has decided that the jumping plant louse is the perfect alternative among all these. It further lays down the reason that makes this psyllid the perfect option, which is the reality that it is a sap-sucking insect, thus it is host specific. This is to pacify contentions that the insect may relocate to local plants as soon as it is introduced into the ecosystem. The insect will inhibit its growth and make it less competitive. The insects will sip the juice from the plant during their larva stage. These may not absolutely kill off the harmful weed. The goal is to make them more adaptable and render the control method more maintanable in due course in addition to more economical. An amazing sum of about 1.6 billion pounds annually is exhausted on eliminating Japanese knotweed.
The addition of a foreign species into the UK poses a biological danger, a lot of doubting Thomases declare. What took place in Australia after introducing cane toads being an organic pest control for beetles in 1935, just to become an ecological threat today, may likewise happen in United Kingdom. Another example was the introduction of harlequin ladybirds in some European countries for ecological control but it just needed them little time to cross the English Channel and put the British ladybirds at stake. Japanese knotweed removal by the introduction of the jumping plant louse is going to be a long discussion. The confrontation of these two, the Japanese knotweed and its arch enemy, the jumping plant louse, will not happen in the near future.
