HORTICULTURE SCIENCE
DISEASE AND PEST MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is NOT a reason why the environment in which aquacrops grow harbors diseases and pests?
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High concentrations of aquacrops allows for more rapid transfer of diseases and pests from one individual to anther.
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Uneaten feed, fish excrement, and excess fertilizer provide nutrients for the growth of weeds.
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Handling causes stress, and stress, in turn, reduces resistance to some diseases and pests.
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High populations in ponds, open tanks, and raceways are protected from predators.
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Explanation:
Detailed explanation-1: -A typical effect of elevated temperature is therefore to increase consumption rates and therefore decrease the time to pupation, making them less apparent to natural enemies and in some cases increasing the potential number of generations per season.
Detailed explanation-2: -The intensity of the incidence/infestation of pests and diseases is usually measured by taking the ratio of the infected plants to the total number of plants in the selected plot of the field at various stages of the growth period.
There is 1 question to complete.