Lecture 1

Question 1

What are the factors affecting toxicity of a plant

Answer 1

1. Plant
2. Animal
3. Environment

Question 2

What are the plant factors affecting toxicity

Answer 2

1. Parts of the plant may be toxic and others not

Question 3

What are the animal factors affecting toxicity

Answer 3

1. Poor condition of animals
2. Starving animals
3. Animals in unfamiliar surroundings
4. Leaving animals in yards where they become curious

Question 4

What are the environmental factors affecting toxicity

Answer 4

1. Environmental factors such as altitude, temperature, rainfall, soil moisture, soil type, light and photoperiod
2. Cloudy conditions with light rainfall tends to promote toxicity of many paints containing cyanogenic glycosides
3. Plants growing on soils with high nitrogen levels often contain toxic levels of nitrates
4. Plants growing on soils with high levels of selenium may accumulate selenium

Question 5

What are the 5 main components of the cost of plant poisoning

Answer 5

1. Cost of death
2. Reduced production of survivors of toxins
3. Reduced land used caused by the presence of poisonous plants
4. Veterinary cost
5. Control measures

Question 6

Name the family

Answer 6

Anacardiace(cashew family)

Question 7

Answer 7

Apocynaceae (dogbane family)

Question 8

Answer 8

Aracea

Question 9

Answer 9

Asclepiadiaceae

Question 10

Answer 10

Asteraceae (daisy family)

Question 11

Answer 11

Boranginaceae (borange family)

Question 12

Answer 12

Convolvulancae family (morning glory family)

Question 13

Answer 13

Cycadaceae

Question 14

Answer 14

Euphorbiacea (spirge family)

Question 15

Answer 15

Leguminaceae

Question 16

Answer 16

Liliaceae (lily family)

Question 17

Answer 17

Malvaceae (mallow family)

Question 18

Answer 18

Myrtaceae

Question 20

Answer 20

Poaceae

Question 21

Answer 21

Rubiaceae

Question 22

Answer 22

Solanaceae

Question 23

Answer 23

Verbenaceae

Question 24

Answer 24

Zygophyllaceae