Agriculture Exams (Agri Croppro) – Page 16

#300. It is a phase in the sequential development of crop protection (according Smith, 1969) which is characterized by serious pest outbreaks due to excessive use of pesticides and finally the collapse of pest control program
A Crisis Phase
B Integrated Pest Control
C Exploitation Phase
D Disaster Phase
Answer: Disaster Phase
#301. Which of the following is an autotroph?
A weed
B plant pathogen
C insect pest
D parasite or predator
Answer: weed
#302. Which of these are density-independent mortality factors?
A parasites
B predators
C food supply
D drought
Answer: drought
#303. A concoction of lime, copper sulfate and water which had been accidentally found to possess fungicidal activity
A lime sulfur
B Bordeaux mixture
C Paris Green
D Copper fungicide
Answer: Bordeaux mixture
#304. The principle of pest exclusion means
A getting rid of a pest once it is introduced in an area
B killing pest inside host
C keeping pest away from the host
D shielding host from pest through physical or chemical means
Answer: keeping pest away from the host
#305. It refers to the population or injury level of pest where a pest control method should be initiated in order to prevent significant economic loss
A economic injury level (EIL)
B economic threshold level
C warning threshold level
D damage threshold level
Answer: damage threshold level
#306. The following attributes of modem agriculture aggravates pest and disease problems
A continuous monoculture
B use of high yielding varieties (HYVS) O
C excessive use of chemical inputs
D all of the above
Answer: all of the above
#307. Legal actions intended to exclude potential pests and to prevent spread of those already present
A eradication
B containment
C suppression
D quarantine
Answer: quarantine
#308. Which of the following is not an insecticide?
A Endrin
B Malathrin
C Cypermethrin
D Permethrin
Answer: Malathrin
#309. Which of the following is a systemic fungicide?
A Metalaxyl
B Captan
C Mancozeb
D Chlorothalonil
Answer: Metalaxyl
#310. Which of the following crop is a heavy user of fungicide worldwide?
A Grape
B Apple
C Banana
D Citrus
Answer: Apple
#311. Which of these pesticide groups is excessively used in the Philippines?
A Fungicides
B Insecticides
C Herbicides
D Nematicides
Answer: Insecticides
#312. Effective physical pest control action
A Bagging
B Hand picking
C Herding
D Flooding
Answer: Flooding
#313. It is a biological control product against pests
A Katol
B Dipel
C Methyl Eugenol
D Off
Answer: Dipel
#314. It is a biological control product against weed
A Dipel
B Gallex
C Kodiak
D Devine
Answer: Devine
#315. Which of the following is a contact herbicide?
A 2-4 D
B Glyphosate
C Paraquat
D Butachlor
Answer: Paraquat
#316. Physical pest control method required to eliminate fruit flies on mango and papaya for export to Japan.
A Hot Water Treatment
B Vapor Heat Treatment
C Refrigeration
D UV radiation
Answer: Vapor Heat Treatment
#317. Which of these pesticide groups is excessively used worldwide?
A Fungicides
B Insecticides
C Herbicides
D Nematicides
Answer: Herbicides
#318. Sustainable agriculture shall mean any method or practice that aims to make agriculture:
A economically viable
B ecologically sound
C socially just
D all of the above
Answer: all of the above
#319. A phase in the development of crop protection which is characterized by the use of traditional varieties and natural pest control methods.
A Disaster phase
B Crisis phase
C Exploitation phase
D Subsistent Phase
Answer: Subsistent Phase