1. What is the electrostatic spraying?
a. The irrigation equipments operating from electric system
b. Spraying out electronically charged droplets
c. Electrical grounded spraying equipments for protection against thunderbolts
2. What is the most frequent disease of mint species?
a. Puccinia menthae
b. Erysiphe umbelliferarum
c. Peronospora brassicae
3. How can the infusion be made?
a. The raw material should be poured with hot water then after short time soaking, filtrate it
b. The raw material should soak in cold water for several days (1-2 weeks)
c. The raw material should mix with cold water and boil till 220 °C
4. Which is the most dangerous weed in the caraway cultivation?
a. Wild mustard
b. Milk thistle
c. Poison hemlock
5. What is NOT a criterion for a biological pesticide?
a. Environmental friendly
b. Biodegradable active agent
c. The active agent should be synthesized from plant
d. Economical