Horticulture Chapter 15

The most important component of diagnosing plant health problems is proper identification of the _______.

• environment

• host

• pathogen

• climate

Determining if a problem is normal or __________ must be considered

• normal

• Abnormal
• biotic

• infectious

Symptoms are the changes in _________, growth or development of a plant

• appearance

• symptom

• reaction

• host

Tags

NGSS.MS-LS1-5

Often, plants respond the same way to _________ problems, and diagnosis based only on 1 or 2 __________ may be inaccurate.

• Same , symptoms

• different, symptoms

• various, factors

• infectious, disease

Whenever possible, examine the ________ of the affected plant.

• roots

• sprouts

• node

• abiotic

Tags

NGSS.4-LS1-1

_______ are evidence of the biologic agent causing damage.

• Signs
• Symptoms

• abiotic

• infectious

non- infectious

(a)  

Biotic diseases are abnormal conditions of a plant caused by __________ __________.

• living organisms
• nonliving organisms

• small organisms

• large organisms

Foliar problems rarely result in plant _________.

• health

• life

• death

• disruption

______ _________ can be caused by rope or twine left on rootballs.

• shoot system

• root girdling

• root system

• Stem girdling

Tags

NGSS.MS-LS1-5