Question

Десять колорадлских жуков в течение 30 суток объедают 2000см² листья кортофеля.За периуд своего развития личинка колорадского жука съедает примерно 50см² листьев кортофеля.Подщитайте и запишите ,какую площядь листьев картофыеля съедает 1000 колорадских жуков. Сколько личинок этого жука могут уничтожить такую же площядь листьев?На основании приведённых подсчётов сделайте вывод о влиянии колорадского жука на урожай кортофеля.

Answer 1

200000см2 - съедят 1000 колорадских жуков
200000см2 / 50см2 = 4000 личинок съедят это кол-во
Колорадский жук наносит значительный вред культурным растениям, выращиваемым человеком.

Answer 2

Calculation of Leaf Area Eaten by 1000 Colorado Beetles

According to the given information, ten Colorado beetles can consume 2000 cm² of potato leaves in 30 days. This means that each beetle consumes an average of 200 cm² of potato leaves in 30 days.

To calculate the leaf area eaten by 1000 Colorado beetles, we can use the following formula:

Leaf area eaten by 1000 beetles = (Leaf area eaten by 10 beetles) * 100 * (1000 / 10)

Substituting the values, we get:

Leaf area eaten by 1000 beetles = 200 cm² * 100 * (1000 / 10) = 200 cm² * 100 * 100 = 2,000,000 cm²

Therefore, 1000 Colorado beetles can consume approximately 2,000,000 cm² of potato leaves.

Number of Larvae that can Destroy the Same Leaf Area

According to the given information, each Colorado beetle larva consumes approximately 50 cm² of potato leaves during its development.

To calculate the number of larvae that can destroy the same leaf area as 1000 beetles, we can use the following formula:

Number of larvae = Leaf area eaten by 1000 beetles / Leaf area eaten by 1 larva

Substituting the values, we get:

Number of larvae = 2,000,000 cm² / 50 cm² = 40,000 larvae

Therefore, approximately 40,000 Colorado beetle larvae can destroy the same leaf area as 1000 beetles.

Conclusion on the Impact of Colorado Beetles on Potato Harvest

Based on the calculations, it is evident that Colorado beetles can have a significant impact on the potato harvest. A population of 1000 beetles can consume a large leaf area of approximately 2,000,000 cm², which can lead to reduced photosynthesis and overall plant health. Additionally, the large number of larvae that can be produced by these beetles further exacerbates the damage to the potato plants. It is crucial to implement effective pest control measures to mitigate the impact of Colorado beetles and protect potato crops from significant yield losses.