- What is the de-linting process of cotton seed?
- How many plants are there in an acre to get good yield of Bt cotton?
- Why sucking pest attack is more on Bt cotton varieties as compared to non Bt varieties?
- What should a farmer do from saving early attack of sucking insect pests in cotton crop?
- What is the ideal climate for cotton mite and whitefly infestation?
- What are pests of seedling cotton?
- On attack of thrips why farmers are advised to plough/hoe the field?
- What can we use as attractant for white fly in tunnel crops?
- Why does cotton leaf becomes black?
- What are pests which can not attack Bt. Cotton?
- What are bugs that feed on cotton?
- What are chewing pests of cotton?
- What is pupa?
- Where is pupae of American boll worm and Armyworm found?
- What are host plants of Armyworm?
| What is the de-linting process of cotton seed? | Top | |
| The fuzzy seed of cotton is normally acid delinted so that seed can freely move in the pore for sowing purposes. The ratio of sulfuric acid and seed is 1:10, i.e. one litre of acid is sufficient for 10 kg of seed. During the delinting process, acid is poured and mixed onto the seeds kept in a large plastic sheet until the fuzz is removed and given several washings with tap water to remove extra acid on the seeds |
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| How many plants are there in an acre to get good yield of Bt cotton? | Top | |
| There are normally 24000 plants in a cotton field | ||
| Why sucking pest attack is more on Bt cotton varieties as compared to non Bt varieties? | Top | |
| This is called pest replacement. In Bt cotton the minor sucking pests like dusky bug, thrips, mealy bug etc have replaced theboll worms i.e. American boll worm, spotted boll worm and pink boll worm |
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| What should a farmer do from saving early attack of sucking insect pests in cotton crop? | Top | |
| The crop can be saved from the early attack of sucking insect pests like whitefly, jassid and thrips by seed treatment with suitable insecticide like imidacloprid70 WS @ 7-10 g/kg seed | ||
| What is the ideal climate for cotton mite and whitefly infestation? | Top | |
| Hot and dry climate is ideal for mite and whitefly infestation | ||
| What are pests of seedling cotton? | Top | |
| The pests that attack cotton at seedling stage are Thrips, Whitefly, cutworm, termites and Aphid in early cotton | ||
| On attack of thrips why farmers are advised to plough/hoe the field? | Top | |
| Because in sucking pests thrips is the only pest in which pupae are developed into the soil up to 2’’. By hoeing of the fieldpupae are exposed to the sunlight which results in death at premature stage | ||
| What can we use as attractant for white fly in tunnel crops? | Top | |
| Yellow sticky traps are an effective measure to control the white fly in tunnel crops | ||
| Why does cotton leaf becomes black? | Top | |
| Cotton leaf becomes black due attack of whitefly or Aphid | ||
| What are pests which can not attack Bt. Cotton? | Top | |
| Bt. Cotton is resistant against spotted bollworm and Heliothis | ||
| What are bugs that feed on cotton? | Top | |
| Red cotton bug and Dusky cotton bugs feed on seeds of cotton | ||
| What are chewing pests of cotton? | Top | |
| Spotted boll worm, Pink boll worm, American boll worm, Armyworm, Grey weevil, cut worm, Crickets and some loopers are chewing type pests of cotton | ||
| What is pupa? | Top | |
| It is non feeding resting stage of some insects | ||
| Where is pupae of American boll worm and Armyworm found? | Top | |
| The pupae of both these insects are found in soil | ||
| What are host plants of Armyworm? | Top | |
| Caster bean, Janter, cotton, sunflower, Lady finger, vegetables, and many weeds host armyworm | ||