Have you been relentlessly upset by the time and energy, much less the cash, that you invest in completely eliminating Japanese knotweeds from your backyard, just to discover the area healthy and green with fresh shoots a few days after? This weed has been a big headache in the UK for sometime. Not long after its launch in the 1800’s, the plant has invaded many of UK’s wastelands and land area. It has posed a real danger to the local plant species as they are highly resilient to numerous methods of control. They crowd out local plants and lower the species assortment in the region.
There have been very many ways used to deal with the growth and spread of the invasive Japanese knotweed, from pesticides to thoroughly eliminating the plants to adding its real parasite, Aphalara itadori. These psyllids, as they are called, are sap-sucking insects which are also belonging to Japan from where the weed also came from. Aphalara itadori is also known as jumping plant louse. The premeditated introduction of this psyllid is backed up by scientific investigations from CABI and yet not everyone are amenable to the idea.
The research has spanned some six years, testing over 200 preventive measures and has concluded that the jumping plant louse is the best alternative among all these. It further lays down the justification that makes this psyllid the perfect option, which is the reality that it is a sap-sucking insect, therefore it is host specific. This is to calm down claims that the insect might relocate to local plants as soon as it is introduced into the ecosystem. The insect will inhibit its growth and render it less aggressive. The insects will suck the juice from the plant in their nymph stage. These may not absolutely destroy the deleterious weed. The point is to render them more adaptable and render the preventive method more viable in due course in addition to more economical. An astounding total of roughly 1.6 billion pounds yearly is used up on getting rid of Japanese knotweed.
The addition of a foreign species into the UK presents a biological danger, a lot of doubting Thomases proclaim. What took place in Australia after using cane toads being an organic pest control for beetles in 1935, just developed into an ecological menace today, may also happen in United Kingdom. Another example was the addition of harlequin ladybirds in some European countries for ecological control but it just needed them a short time to go across the English Channel and placed the British ladybirds at risk. Japanese knotweed removal by the addition of the jumping plant louse is going to be a lengthy deliberation. The face off of these two, the Japanese knotweed and its arch rival, the jumping plant louse, will not happen soon.