Correct
Solution (d)
The snail species was first brought to Kerala for research. Today, they have settled in almost every district in the state.
The first snail invasion was traced near the Government Victoria college area in Palakkad. The snails reproduced aggressively and turned into a serious scourge for locals. To get rid of them, a programme was started by the district administration where Rs 1 would be given in exchange for one snail. However, the snail population was so large that people collected dozens of them and the scheme had to be shelved for lack of funds. Metaldehyde, a chemical toxin can kill the snails. However, this was soon shelved as the chemical killed aquatic life when it mixed with surrounding water bodies.
Metaldehyde was replaced with a mixture of copper sulphate and tobacco decoction, discovered by two research students who were studying snail eradication independently.
They enter kitchens, stick on compound walls for calcium and feed on 500 different plants including papaya, tapioca, colocasia, ginger and all tuber crops.
The snail requires large amount of calcium for maintaining its huge shell. As the soil in Kerala is very poor in calcium content, the snails utilize the calcium content in the compound walls and buildings, thus damaging them
Research has also found that wild populations of the Giant African Snails carry Angiostrongylus cantonensis, a parasite which causes meningitis.
“If they enter the kitchens, this could lead to the parasite’s spread
The Giant African snails, originally from Kenya and Tanzania, have found new homes in Tamil Nadu, Karnataka and the North East.
Like most snails, the Giant African species too is hermaphroditic, with each snail having both male and female reproductive parts. This means that 100 percent of these snail populations have reproductive capabilities.
The snails have ‘mating ducts’ which fuse together to transfer the sperm into the female. Usually, the bigger snail assumes the role of the male and the smaller one, the female. If no other snails are found, an individual snail will self mate,
An adult snail lives for 5-7 years and can start laying eggs within a year.
Article Link:
https://www.thenewsminute.com/article/giant-african-snail-has-turned-kerala-its-home-locals-want-them-leave-103389
Incorrect
Solution (d)
The snail species was first brought to Kerala for research. Today, they have settled in almost every district in the state.
The first snail invasion was traced near the Government Victoria college area in Palakkad. The snails reproduced aggressively and turned into a serious scourge for locals. To get rid of them, a programme was started by the district administration where Rs 1 would be given in exchange for one snail. However, the snail population was so large that people collected dozens of them and the scheme had to be shelved for lack of funds. Metaldehyde, a chemical toxin can kill the snails. However, this was soon shelved as the chemical killed aquatic life when it mixed with surrounding water bodies.
Metaldehyde was replaced with a mixture of copper sulphate and tobacco decoction, discovered by two research students who were studying snail eradication independently.
They enter kitchens, stick on compound walls for calcium and feed on 500 different plants including papaya, tapioca, colocasia, ginger and all tuber crops.
The snail requires large amount of calcium for maintaining its huge shell. As the soil in Kerala is very poor in calcium content, the snails utilize the calcium content in the compound walls and buildings, thus damaging them
Research has also found that wild populations of the Giant African Snails carry Angiostrongylus cantonensis, a parasite which causes meningitis.
“If they enter the kitchens, this could lead to the parasite’s spread
The Giant African snails, originally from Kenya and Tanzania, have found new homes in Tamil Nadu, Karnataka and the North East.
Like most snails, the Giant African species too is hermaphroditic, with each snail having both male and female reproductive parts. This means that 100 percent of these snail populations have reproductive capabilities.
The snails have ‘mating ducts’ which fuse together to transfer the sperm into the female. Usually, the bigger snail assumes the role of the male and the smaller one, the female. If no other snails are found, an individual snail will self mate,
An adult snail lives for 5-7 years and can start laying eggs within a year.
Article Link:
https://www.thenewsminute.com/article/giant-african-snail-has-turned-kerala-its-home-locals-want-them-leave-103389