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Originally Posted by Lancashire Lad  The scientists say they have tested the beetle's .......... |
It isn't actually a beetle but as someone higher up the thread has already mentioned it's a Psyllid. These are sap sucking insects and most are generally very host specific. This makes it a lot less likely to switch to other food sources than some other herbivorous insects. Could be it's the lesser of two evils, very hard to know until it's tried.