ВУЗ:
Составители:
Рубрика:
insects that otherwise would have ruined their crops. Today they are
experimenting successfully with bug juice.
This new way of killing invented by a farmer whose fields were crawling
with crop-destroying bugs. He searched his fields for dead, dying or diseased
bugs. He reasoned that the sick bugs were infected with germs. By means of the
bug-juice spray, made from the diseased insects, the germs would attack the
healthy insects. The bugs would no longer be able to damage the crops.
Experts aren’t sure if this explains why the bug juice works. Other reasons
might be that the smell of the bug juice drives away the harmful bugs or that the
odor of the bug juice attracts the bugs’ enemies. Whatever the reason, many
farmers are grateful for this simple but effective method of insect control.
Notes:
blender смеситель
thinned-out разжиженный
germ зародыш, эмбрион
Text 4
INSECTS ARE ON THE MARCH
Hordes of pesky bugs – biting people, ravaging crops and devouring homes
– threaten much of the U.S. this year.
An insect invasion worse than any in recent years is arriving with warm,
moist weather.
Already, swarms of biting bugs are pushing into many parts of the South –
from mosquitoes and black flies breeding in swampy areas to fire ants building
their mounds in farm fields.
In California, farmers are spraying to combat the Mexican fruit fly, while
suburban gardeners are working to wipe out a surge of Japanese beetles.
From Florida to Hawaii, home-owners and builders are fighting a new king
of pest, the Formosan termite, that consumes wood far more rapidly than
domestic varieties and can hollow out the walls of buildings in three months.
Meanwhile, the gypsy moth - finally under control in Hew England - has
moved into the hardwood forests of Pennsylvania, West Virginia and Ohio. In
some localities, researchers say, there are several million of the leaf-eating
caterpillars per acre.
Such outbreaks don't surprise many scientists, who say conditions are ripe
for insect infestations. Reports Don Weidhaas, entomologist with the federal
Agricultural Research Service In Florida: "Flooding has left a lot of water
standing In pools. That plus the warmer temperatures means the bugs will be out
In droves."
45
Страницы
- « первая
- ‹ предыдущая
- …
- 44
- 45
- 46
- 47
- 48
- …
- следующая ›
- последняя »