Jay and Vijay spent an equal amount of money to buy some pens and special pencils of the same quality from the same store. If Jay bought 3 pens and 5 pencils, and Vijay bought2 pens and 7 pencils, then which one of the following is correct?
The correct answer is D
Which of the following is not a natural predator of BPH?
Pebrine disease of silkworm is caused by
The scientific name of dammer bee is
Which of the following pair is not correct?
Insects, which feed on one type of food, are called _______.
Which of the following insects is the carrier of grassy stunt pathogenic virus?
The headquarter of Central Silk Board is located at
Which of the following statements is true about Entomology?
Shellac is secreted by