4 อันดับ สัตว์ที่คนต่างประเทศปวดหัวหนักมาก แต่ทำไมคนไทยกับเตรียม น้ำจิ้มรอ | EP15

Summary

The video script discusses invasive species causing environmental and agricultural damage, focusing on the Patanga succincta moth, a major crop pest from India and Pakistan that devastates fields. It also covers the Pomacea canaliculata snail from South America, causing havoc in rice fields in Japan and Thailand. The script shifts to the Blue crab, originally from the USA, which has become a problem in Spain and Tunisia due to overpopulation. Lastly, it mentions the Pacific oyster, a delicacy in Thailand but an invasive species in Norway, where the consumption rate can't keep up with their rapid reproduction.

Takeaways

• 🦗 The Patanga succincta locust is a major pest that has caused widespread agricultural damage globally.
• 🌍 Locust swarms devastated more than 10 million acres of crops in India and Pakistan in 2017, leading to severe food shortages.
• 🌱 In Thailand, a massive locust infestation occurred in the 1980s, but the population was controlled by locals who turned them into a food source.
• 🐌 The Pomacea canaliculata snail, native to South America, has heavily impacted rice fields in Japan and Thailand.
• 💧 The rapid reproduction rate of these snails makes them a major threat to agriculture, particularly during the rainy season.
• 🦀 The invasive blue crab species, originally from the US, has caused ecological problems in Spain and Tunisia.
• 🌊 In Tunisia, the blue crab has damaged fishing nets, but local fishermen have started exporting them to create revenue.
• 🐚 The Pacific oyster has become an ecological challenge in Norway, with consumption failing to keep up with their overpopulation.
• 🍽 Thailand has a strong demand for oysters, consuming about 22,000 tons per year, and could help alleviate Norway's oyster problem.
• 👍 The video encourages viewers to like and support the channel for more content, mentioning past successes in controlling invasive species through creative local solutions.

Q & A

What is the impact of invasive species on the environment?

Invasive species can cause significant damage to the environment by disrupting ecosystems, leading to economic and social impacts, and causing rapid destruction of crops and other resources.

What is the native region of the Patanga succincta, also known as the 'cotton bollworm'?

The Patanga succincta, or cotton bollworm, is native to India, Pakistan, and Bangladesh.

How does the Patanga succincta reproduce and what is its life cycle?

The Patanga succincta has a life cycle consisting of four stages: egg, larva, pupa, and adult. Females can lay 1-3 eggs at a time, with a total of 200-450 eggs buried in moist soil about 2-7 cm deep.

What economic and social damages did the Patanga succincta cause in India and Pakistan in 2017?

In 2017, the Patanga succincta destroyed more than 10 million acres of crops in India and Pakistan, leading to millions of people facing hunger and severe economic losses in agriculture.

How did Thailand respond to the invasion of Patanga succincta in the past?

Thailand responded to the invasion by preparing to use airplanes to spray pesticides. However, this plan was halted due to public outcry, and alternative methods were sought.

What is the Pomacea canaliculata, and where is it native?

The Pomacea canaliculata, also known as the 'apple snail,' is native to South America and is known for its rapid reproduction and ability to cause significant damage to rice crops.

How frequently can Pomacea canaliculata lay eggs and what is the color of their eggs?

Pomacea canaliculata can lay eggs up to 14 times per month during the rainy season, with each clutch containing 300-3000 eggs. The eggs are pink and are laid in clusters above the water level on dry land.

What is the Blue crab, and where is it originally from?

The Blue crab, or Callinectes sapidus, is a marine crab native to the east coast of the United States. It is known for its omnivorous diet and ability to breed rapidly.

How did the Blue crab become a problem in Spain, and how are they dealing with it?

The Blue crab became a problem in Spain after being introduced, possibly by fishing vessels. They are being managed by encouraging consumption, with fishermen catching over 12 tons per week in 2023.

What is the economic impact of the invasive species discussed in the script on the countries they invade?

The invasive species discussed, such as the Patanga succincta and the Blue crab, can lead to significant economic losses due to crop damage, increased costs for pest control, and the need for management strategies.

How do invasive species like the Patanga succincta and Pomacea canaliculata affect local agriculture and what measures can be taken to mitigate their impact?

Invasive species can devastate local agriculture by destroying crops rapidly. Measures to mitigate their impact include monitoring and early detection, biological control, public education, and in some cases, encouraging consumption as a form of control.