Question
Discuss the various methods which are used to control plant diseases.

Answer

Methods to control plant diseases:
  1. Seed treatment with Thiram 2.5g/ kg to prevent blast of rice.
  2. Spraying Bavistin at 10 days interval to prevent wheat rust.
  3. Spraying Dithane M45 at 2g/ l water at 10 days interval to prevent wheat rust.
  4. Avoid water logging for fungus diseases.
  5. Growing sorghum and pigeon pea mixed cropping to avoid stem rot.
  6. Spraying the crop with 0.2% Ziram and Maneb.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

On the basis of shape and functions of cells how epithelial tissues are classified? Explain with diagram the various types of epithelial tissues.
What is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in: (a) a city (b) a village (c) a bare room (d) a furnished room.
A liquid compound X of molecular mass 18u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
  1. Name (i) liquid X (ii) gas Y, and (iii) gas Z
  2. What is the ratio to the mass of element Z to the mass of element Y in the liquid X?
  3. Which law of chemical combination is illustrated by this example?
  4. Name two sources of liquid X.
  5. Gate an important use of Y in our life.
Define motion. What do you understand by the terms ‘uniform motion’ and ‘non-uniform motion’? Explain with examples.
An elephant weighing 4$0,000N$ stands on one foot of area $1000\ cm^2$ whereas a girl weighing $400N$ is standing on one ‘stiletto’ heel of area $1\ cm^2.$
  1. Which of the two, elephant or girl, exerts a larger force on the ground and by how much?
  2. What pressure is exerted on the ground by the elephant standing on one foot?
  3. What pressure is exerted on the ground by the girl standing on one heel?
  4. Which of the two exerts larger pressure on the ground: elephant or girl?
  5. What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant?
Velocity versus time graph of a ball of mass $50g$ rolling on a concrete floor is shown in Fig. Calculate the acceleration and frictional force of the floor on the ball.
Tabulate the differences in the characterisitcs of states of matter.
What do you know about complex tissue Classify and explain its different types in plants with suitable diagrams.
If the distance between two masses is increased by a factor of $5,$ by what factor would the mass of one of them have to be altered to maintain the same gravitational force? Would this be an increase or decrease in the mass?
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.