www.bbcnoun.com.ng CRP303 7/10 1. Direct effects of weeds on crop include: Competition 2. When disease incitants are neither living nor non – living, they are Abiotic 3. Parasitic weeds feed on the host plant by with the aid of ___________ haustoria 4. Categories of storage pests include all the following BUT: Major pests 5. Indirect effects of weeds includes all BUT: Weeds can affect mechanical harvesting using combine harvester 6. Which option is not a preventive weed management system? Use of herbicides 7. Grains should be dried properly, below ____% moisture level before storage 15 8. Precautionary measures for control of pests in stored products incude all BUT Poor hygiene helps to prolong the shelf life of stored produce 9. Which statement is not correct about the life cycle of weeds? Biennials complete their cycle in one year 10. Birds can be controlled by the use of all BUT: Late harvest