SOLUTION TESTED QUESTIONS WITH
COMPLETE ANSWERS
●● Desiré able pH for soil
Answer: Between 6 and 7
●● Single pesticide resistance
Answer: Resistance to only 1 SOA
●● Cross pesticide resistance
Answer: Resistance to 2 or more pesticide families w same SOA
●● Multiple pesticide resistance
Answer: Resistance to 2 or more pesticides with different SOAs
●● arthropod
Answer: Characterized by body in segments, jointed legs and other
appendages, and exoskeleton
●● insects
,Answer: Type of arthropod w body divided in 3 regions: head, thorax,
and abdomen. Adults have 3 pairs of legs and usually wings
●● endophytic fungi
Answer: Fungi that grow within the plant, beginning at the seedling
stage, and can help protect plants from insects that feed on the leaves
(ex: cutworms, chinch bugs, and billbug adults).
Found in many turfgrasses (ex: perennial ryegrass, tall fescue, and fine
fescue)
●● biotic diseases and problems
Answer: - fungal diseases
-thatch
-algae
-moss
-dog urine
●● abiotic problems
Answer: -compaction
-soil type
-fertility
-water
-heat stress
,●● pathogens
Answer: biotic entities that incite disease. they are infectious and pass
from plant to plant by vectors
●● vectors
Answer: organisms that are able to transmit a pathogen
●● nematodes
Answer: microscopic multicellular round worms (not true worms).
Cause injury to plants by feeding on roots. Contribute to breakdown of
genetic resistance and open the way for pathogens
●● Symptoms of fungal disease
Answer: symptoms:
-leaf spots
-distortions
-stunting
-wilting
-damping-off
-blights
-necrosis
-rots
, -rusts
●● signs of fungal disease
Answer: -mushrooms
-mycelium
-sclerotia
●● symptoms of nematodes in turf
Answer: -poor overall growth
-yellowing of grass foliage
-distortions
-stunting
●● symptioms of chronic low water stress
Answer: symptom ex:
-stunting
-pale to chlorotic in color
-few small and drooping leaves
-failure to thrive
-wilting
-dying
-marginal scorch on leaves