The population of the spruce budworm, the warbler's favorite prey in North America, has been dropping.

北美莺最喜欢的猎物云杉芽虫的数量一直在下降。

Scientists have now investigated the effects of the spraying of Matacil, one of the anti-budworm agents that is least toxic to insect-pollinators.

科学家们现在已经研究了喷洒灭害威的效果，灭害威是一种抗虫剂，对传粉昆虫的毒性最小。

Is tomato plant the host of the oriental tobacco budworm, Helicoverpa assulta (Guenée)?

番茄是烟青虫的寄主植物吗?。

A larva of several tortricid moths, especially the spruce budworm, that devours plant buds.

一些卷叶蛾的幼虫，尤指云杉芽虫，吞食植物的幼芽。

Also clarified: "bollworm's son," is wrong, bee arrested budworm not raise as his own son, but arrangements for food for their offspring.

还弄清了：“螟蛉之子”是错误的，蜂抓青虫不是当成自己的儿子养，而是为自己的后代安排食物。

As to different host plants, HJS strain preferred to oviposit in the host eggs on pepper, but tobacco budworm preferred to oviposit on tobacco.

HJS对辣椒上烟青虫卵的寄生选择系数较高，而烟青虫偏好产卵于烟草。

In Maine Daniel Jennings of the u. s. forest service has enlisted spiders in the war against the spruce budworm the northeast's most devastating enemy of spruce and fir forests.

在缅因州，美国林业局的丹尼尔·詹宁斯征募蜘蛛来与云杉芽卷蛾——东北部云杉和冷杉林最凶恶的敌人——作战。

In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm , an economically significant pest.

例如，在NB的森林里，过去的25年里，多种杀虫剂被喷洒以控制云杉蚜虫，一种经济上严重的病害虫。

The moths also look the same at first glance, and Miller says this drawer holds nothing but a single species of spruce budworm, an infamous pest of eastern forests in North America.

第一眼瞥去，这些蛾也长得完全一样，Miller说这个抽屉内仅有一种云杉蚜虫——北美洲东面树林内一类不知名的害虫。