grasshopper control造句

例句与造句

1. Chickens love grasshoppers; they're one of the best grasshopper controls.
2. Hooper noted with concern that another, less toxic organophosphate pesticide was being recommended as a replacement for grasshopper control.
3. A hungry cat, in fact, is also a decent grasshopper control, but most people won't keep their cats that hungry.
4. For that reason, it was only in the Sahel that serious efforts were undertaken to promote Green Muscle for grasshopper control.
5. Under Weir's tenure, agricultural researchers attempted to teach farmers how to prevent soil drifting that caused the Dust Bowl and initiated a major grasshopper control campaign in 1933 that reduced crop losses.
6. It's difficult to find grasshopper control in a sentence. 用grasshopper control造句挺难的
7. While the Argentine government recently prohibited the use of monocrotophos for grasshopper control and banned all uses of the chemical on the alfalfa fields where many of the Swainson's hawks forage, scientists in the United States and Canada worry that farmers whose crops are under attack by the insects will continue to use existing stocks of the poison.
8. Nontarget effects on some insects ( predatory and detritivorous beetles, some parasitic wasps and bees ) were also found in field trials of fipronil for desert locust control in Mauritania, and very low doses ( 0.6-2.0 g a . i . / ha ) used against grasshoppers in Niger caused impacts on nontarget insects comparable to those found with other insecticides used in grasshopper control.