Category Archives: Plants

No fly zone

Crab spider webs and fruit
A crab spider sits in its web
A crab spider sits in its web.,

Crab spiders (also known as spiny-backed spiders) came to Hawaii in 1985. They spread through all the islands and are especially numerous here in the winter months. They build dense thickets of webs such as these between two tangerine trees. They look threatening, but aren’t particularly. People do get bitten, mostly if a spider falls on them or gets lodged in clothing.

I usually encounter them when I miss spotting a web and end up with it wrapped around my head. Their webs, which often span a 10 or 20 foot gap, seem especially strong and sticky.

For more information about crab spiders, go to gardenguyhawaii.com/2011/12/crab-spiders.html.

Lantana

Lantana Camara

Originally from South America, Lantana camara is a shrubby plant that can grow to 6 feet. Its cheerful, multicolored flowers are followed by berries that are a favorite of birds. The birds, in turn, disperse the seeds which lead to the plant being common in many places. Too many perhaps. It’s another of those invasive weeds here, this one particularly problematic because it’s poisonous to livestock.

Cuckoo wasp

Cuckoo wasp on a frangipani.Cuckoo wasp on a frangipani.

I saw this small, bright insect flitting about on the new growth of a plumeria. The cuckoo wasp gets its name from its practice of laying eggs in the nests of other wasps and bees. Once hatched, the cuckoo wasp eats the host wasp or bee larva. Then it eats the food placed in the nest for the host’s offspring. Probably not an insect to invite to your next dinner party.

For more information about cuckoo wasps, go to bugguide.net/node/view/6946.

Oriental stink bug

An oriental stink bug on a basil leaf.
An oriental stink bug on a basil leaf.

When I first saw this bug, I thought it was a Japanese beetle. Later, I realized I was wrong and it was a stink bug. They get their name because they can emit a foul-smelling substance when disturbed. Luckily, I didn’t disturb it enough to provoke that response, though there was no way I was going to leave it be on the basil plant where I found it. Most mornings see the plant with new holes or bite marks. Seems to be a favorite of just about every bug around.

How green is my valley?

Lush foliage on the east side of the Big Island, Hawaii.
The north and east sides of the Big Island get more rain than the west – a lot more rain. Much of that area gets 100 inches and up. A good chunk of it gets more than 200 inches. By contrast, there are areas on the west coast that get less than 10 inches of rain a year. Two of the driest parts of the island are the summits of Mauna Kea and Mauna Loa, which also get less than 10 inches. That’s because they’re mostly up above the clouds.

The east side’s rain tends to be of the tropical variety – intense downpours that don’t necessarily last long. Several inches can fall in the space of half an hour. Flash floods are a threat all over the island. Those heavy rains falling up on the hills can channel down west side gullies.

Another result of all that rain is that the foliage is luxuriantly tropical: towering trees and shrubs, extravagantly large leaves, and vines with everything. This scene is on the coast near the Hawaiian Tropical Botanical Garden north of Hilo.

For more information about Hawaii Tropical Botanical Garden, go to htbg.com.