1. introduction

Question 1

weed

Answer 1

A weed is un undesirable plants that can cause persistent issues such as interfering with desired plants or negatively affecting human activity .

Question 2

List 3 reasons for the control of weeds besides yield loss.

Answer 2

* To prevent * quality decrease of crop * increased production costs * decreased land value * human health issues such as allergies * livestock poisoning * decreased biodiversity

Question 3

List 5 beneficial use of weeds.

Answer 3

* Food * Medicine * Erosion control * Insect and disease traps * Pollution control

Question 4

Name a parasitic weed that occurs in Oregon and its host.

Answer 4

Small broomrape on red clover

Question 5

List 3 public concern about herbicide use

Answer 5

* food safety * biodiversity * chemical trespass * soil and water quality