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The South American palm weevil is bursting onto the scene in California. Its arrival could put one of the state’s most cherished botanical icons at risk of oblivion.
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Summer means vacation time, and nothing says, “Welcome to paradise!” quite like a palm tree. Though it’s home to only one native species, California has nonetheless adopted the palm as a quintessential icon.
But a new snake in California’s palm tree-lined garden may soon put all that to the test. Dozens of palms in San Diego’s Sweetwater Summit Regional Park, about 10 miles from the Mexican border, are looking more like sad, upside-down umbrellas than the usual bursts of botanical joy.
The offender is the South American palm weevil, a recent arrival to the U.S. that’s long been widespread in the tropics. Large, black, shiny, and possessed of an impressive proboscis (nose), the weevil prefers the king of palms, the Canary Island date palm, also known as the “pineapple palm” for the distinctive way it’s typically pruned.
A palm tree is basically a gigantic cake-pop, an enormous ball of veggie goodness on a stick. The adult female palm weevil uses her long snout to drill tunnels into that goodness—known to science as the “apical meristem” and to your grocer as the “heart” of the palm—where she lays her eggs.
When her larvae hatch, their food is all around them. And they start to eat.
If the South American palm weevil consolidates its foothold in California, then the worst might still be to come. While these weevils generally stick to the Canary Island palms, they can harbor a parasitic worm that causes red-ring disease—a fatal infection that can strike almost any palm, including the state’s precious native, the California fan.
--- Where do South American Palm Weevils come from?
Originally, Brazil and Argentina. They’ve become common wherever there are Canary Island Palm trees, however, which includes Europe, the Mediterranean, the Middle East.
--- How do they kill palm trees?
Their larvae eat the apical meristem, which is the sweet part of the plant sometimes harvested and sold commercially as the “heart of palm.”
--- How do you get rid of them?
If the palm weevils infest a tree, it’s very hard to save it, since they live on the inside, where they escape both detection and pesticides. Neighboring palm trees can be sprayed for protection.
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Visit the UC Riverside Center for invasive Species Research:
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Greetings! I'm the producer of this episode of Deep Look. I wish we could have brought it to you in smell-o-vision. The stink of the infested tree filled a whole city block, and got all over my shirt. Leave us your questions and comments! And visit Anna at Gross Science, too. —Elliott
I've seen Israelis who battle pests not with sprays and ther toxic stuff but with other pests who are mutated and can't breed. It working pretty well but it takes time but in the end you can grow organic food
It often happens with plant species. They're introduced to a new habitat where the common parasites that rely on that species don't exist. Thus, they flourish and often grow faster or bigger than in their native habitats because the plants that don't invest in defences outcompete those which do. Then, eventually, the parasite gets introduced as well and the non-native plant species has de-evolved its natural defences. So while the infestation can be held in check in its native lands, the plants in the new habitat are completely wiped out - sometimes with a few survivors which haven't lost their resistance. If the parasite doesn't also go after native plant life, both species will disappear after a while, removing one human influence on the ecosystem.
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The effective home remedies for baldness and hair loss in men include oil massages and including coconut milk, eggs, avocados, orange juice, aloe vera, neem paste, henna, mayonnaise, honey, black pepper, vinegar, and lemon juice in their diet. The remedies also include cutting back on red meat, eating nuts and brown rice, boosting B-complex vitamin intake, and maintaining good thyroid health.
For millions of men across the world, regardless of culture, class, nationality, religion, or color, hair loss is an unavoidable aspect of growing older. Fortunate are those who do not face hair loss problems even in their old age. However, a majority of men face this issue in their 40s, 50s, or even earlier.
Causes of Baldness or Hair Loss in Men.
There are a number of causes of male hair loss, including:
Male pattern baldness Alopecia Fungal infections Psychological disorders Chemotherapy side effects Nutrient deficiencies Hormonal imbalances Lack of circulation on the scalp Stress.
It is important to note that hair loss occurs in women as well, for some similar reasons, and some different ones. We will cover hair loss in women in a separate article. Men predominantly suffer from this health condition, particularly male pattern baldness and early onset hair loss from age 20-40.
However, there are ways to slow down the rate of male hair loss or baldness, and even stimulating the hair follicles to reproduce hair. A few home remedies for hair loss and baldness issue are discussed below.