ZOO506 Short Questions

ZOO506 · IMPORTANT SHORT · QUESTION

Q. Damage cause by termites. They enter through cut ends of setts & feed on the soft tissue. The tunnel is filled with the soil. The termites attack setts, shoots, canes and also stubbles Entire shoot dries up and can be pulled out easily Q. Intelleigent cultivation.

• Intelligent cultivation and use of fertilizers is well as pruning to remove injured or diseased parts will aid in insect control

Q.what are repellents? Explain some repellents. 1-Repellents are those materials used to keep insects away from crops, animals and man

2. Various coal-tar and pine products are rather general insect repellents.
3. Naphthalene is a clothes moth repellent and oil of citronella is a common ingredient of preparations used to keep mosquitoes away from people

Q .write commercial products produce by insects.. A third group of insects is responsible for a number of commercial products 1-Silk 2-Honey 3-Beeswax 4-Shellac Q. Write the uses of pesticides. Pesticides are used to control various pests and disease carriers, such as mosquitoes, ticks, rats and mice. Pesticides are used in agriculture to control weeds, insect infestation and diseases. There are many different types of pesticides; each is meant to be effective against specific pests Q. Mode of damage of fruit borer? Bolls showing regular, circular bore holes Larvae seen feeding on the boll by thrusting their heads alone inside and leaving the rest of the body outside

Q. Write the name of thorax seqments. The thorax has its three segments usually quite clearly marked 1-Prothorax 2-Mesothorax 3-Metathorax Q. Vector of malaria? In the case of malaria, the vector is the anopheline mosquito and the disease-causing organism is the malaria parasite. Q. What is shell gland?