The coffee trees, dolloped with white flower clusters that look like snow from a distance, are showing promise for a fruitful winter. We've learned this week that a voracious beetle called the coffee berry borer has invaded our islands, one that drills into the cherry to feed, then further into the seed, or bean as it's known, to lay its slimy little eggs. These are not the same beetles previously featured in this blog. Rather, they are tiny, the size of a sesame seed, and much more destructive. These bitty beasts are a scourge, accounting for crop losses of 20 percent worldwide, and should never have become a problem in isolated Hawaii but for the state's stupid policy of allowing imported, green coffee beans. They're almost impossible to eradicate, since the larvae develop inside the bean. Who knows how many of these we've all brewed up in our Mr. Coffees over the years. Hawaii allows other plant importation too, and with lax inspection, we've acquired ...