Plant Biology
Weeds
IPM in Action
Plant Diseases and Disorders
Wild Card
100

These are flowering plants, while these are non-flowering plants.

What are angiosperms and gymnosperms?

100

A spray solution additive that enhances the effectiveness or mixing process of a pesticide or herbicide.

What is an adjuvant?

100

Salt damage is an example of this type of plant problem.

What is an abiotic problem?

100

This term describes a plant’s reaction to disease, such as galls or leaf spots.

What is a symptom?

100

These insects carry pollen from one flower to another.

What are pollinators?

200

These three primary macronutrients are essential for plant growth.

What are nitrogen, phosphorus, and potassium?

200

These herbicides target specific types of plants, while these kill or damage all plants when applied correctly.

What are selective and non-selective herbicides?

200

This term refers to the pest population level at which the cost of damage exceeds the cost of control

What is an economic threshold?

200

This type of factor, such as air pollution, is non-living and can affect plant health.

What is an abiotic factor?

200

This inert ingredient helps a pesticide mixture spread, disperse, or wet surfaces more effectively.

What is a surfactant?

300

These are embryonic stems enclosed in scale-like leaves, while these are the points of attachment for leaves to the stem.

What are buds and nodes?

300

These grass-like plants are sometimes considered weeds in turf, while these small, soft, seedless plants often form mats.

What are sedges and mosses?

300

This cultural control method for leafhoppers in nurseries helps reduce their population without using chemicals.

What is avoiding over-fertilization?

300

This is the best way to treat plant viruses since chemical treatments are ineffective.

What is infected plant removal?

300

These are root systems with a single main root, and these have many branching roots.

What are taproots and fibrous roots?

400

These meristems are found at the growing tips of shoots and roots, while these meristems increase diameter.

What are apical meristems and lateral meristems?

400

This list includes weeds that must be completely eradicated in Minnesota, with all above- and below-ground portions removed.

What is the Eradicate list?

400

Managing moisture and irrigation is an effective strategy for controlling these two plant issues.

What are fungus gnats and salt damage?

400

More plant diseases are caused by this group of pathogens than any other.

What are fungi?

400

This process improves lawn health by reducing soil compaction and enhancing water and fertilizer uptake.

What is core aeration?

500

This waxy layer affects a plant’s ability to absorb pesticides and is part of this outer protective layer.

What are the cuticle and epidermis?

500

These plants are widespread in Minnesota and pose threats to human or animal health, the environment, or property.

What are restricted noxious weeds?

500

This key step in an IPM action plan helps determine when pest management is necessary by tracking pest populations.

What is monitoring for pests?

500

This is the most effective strategy for pesticide application in disease management.

What is applying pesticides when economic thresholds are reached?