Hello everyone,
I have one question, for what reason all mentioned eucalyptus gunnii. Do any particular reason, or because only he can survive very low temperatures.
eucalyptus gunnii
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I think E. gunnii is the Eucalyptus species most commonly mentioned, because it is also the most commonly grown in Europe (because it can survive very low temperatures, as you already mentioned). Other Eucalyptus species might work as well or even better, but hardly anybody has the opportunity to test them. And the other reason because it is often mentioned is that it is a quite good food plant, which is also green in winter, for many species eating Liquidamber.
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Thank you for your response Fabian, meaning that we share opinion. I asked for the reason, in a circle around my house grow another four types of eucalyptus, so I thought to try
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Yes, just try them. I could really imagine that they might accept it, especially if they have softer leaves.
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I actually tried E. globulus and E. regnans in winter for some species wich have E. gunnii listed as a foodplant (Argema minosae & Actias sinensis), and they just wouldnt take it.
Another interresting thing to note is that the new cultivars of gunnii (the so called "compacta" and "Azura") do not seem suitable either, all the caterpillars ending up dying in 4th instar, which doesnt not occure with standart gunnii, even if mortality is always higher than with Liquidambar.
I can only assume that different eucalyptus species have different physiology and so different byproducts and nutritional values, and that the selected mutation which slows down the growth of the new gunnii cultivars also induces a lack of something in the leaves that the caterpillars need.
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