Lichen!
A harmless and sometimes considered unslightly combination of algae or cyanobacteria and a fungus, coming together in a mutually beneficial relationship.
With a range of colours and forms, the presence of lichen on a tree is a sign of clean healthy air and that it has no negative impact on the growth of the tree.
An epiphyte (a plant or plant-like organism that grows on the surface of another plant), lichens are unlikely to kill a tree, or cause it to fail. Lichens are not parasitic and do not draw nutrients from the tree.
Lichens need sunlight for photosynthesis, so they don't thrive in heavy shade. Consequently, they are typically found on deciduous trees or trees that are already dying, as these conditions provide less leaf cover in the canopy, allowing more light to reach the lichens.
While it is normal and natural for lichen to be present on a tree, an abundance of lichen might suggest that the tree is experiencing some form of stress.
If you are concerned about the presence of lichen
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Poll: How should Guy Fawkes be celebrated?
While it is a fun occasion, fireworks on Guy Fawkes Night has caused much conflict over the years, upsetting our pets and disrupting the sleep of neighbours.
How should we celebrate Guy Fawkes Night? Vote in our poll and share your thoughts below.
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28.1% With a city-wide public fireworks display
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20.2% Small fireworks displays in each community
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7.8% Keep it as is
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32.7% We shouldn't celebrate it!
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10.8% Anything but fireworks
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0.4% Other - I'll share below
Solve This Riddle or Be Left Scratching Your Head!
With pointed fangs, I sit and wait;
with piercing force, I crunch out fate.
I grab victims, proclaiming might,
and physically join with a single bite.
What am I?
Do you think you know the answer to our daily riddle? Don't spoil it for your neighbours! Simply 'Like' this post and we'll post the answer in the comments below at 2pm.
Want to stop seeing riddles in your newsfeed?
Head here and hover on the Following button on the top right of the page (and it will show Unfollow) and then click it. If it is giving you the option to Follow, then you've successfully unfollowed the Riddles page.
What's your favourite recipe for gooseberry?
Love gooseberries? Share your favourite way to enjoy them. We're looking for our readers' favourite family recipes for this delicious crop. Send yours to mailbox@nzgardener.co.nz, and if we use it in the magazine, you will receive a free copy of our December 2024 issue.
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