精萘在農(nóng)藥領(lǐng)域有多種應用，主要包括作為生產(chǎn)原料、增效劑以及驅(qū)蟲劑等，以下是具體介紹：

Naphthalene has various applications in the field of pesticides, mainly including as a production raw material, enhancer, and insecticide. The following is a specific introduction:

作為農(nóng)藥合成原料

As a raw material for pesticide synthesis

合成擬除蟲菊酯類農(nóng)藥：精萘是合成某些擬除蟲菊酯類農(nóng)藥的重要原料。例如，以精萘為起始原料，通過一系列的化學反應，可以合成出高效氯氟氰菊酯等。這些擬除蟲菊酯類農(nóng)藥具有高效、低毒、低殘留等特點，對害蟲具有強烈的觸殺和胃毒作用，能有效防治多種農(nóng)作物害蟲，如蚜蟲、菜青蟲、棉鈴蟲等。

Synthesis of pyrethroid pesticides: Naphthalene is an important raw material for the synthesis of certain pyrethroid pesticides. For example, starting from refined naphthalene, efficient chlorpyrifos and other compounds can be synthesized through a series of chemical reactions. These pyrethroid pesticides have the characteristics of high efficiency, low toxicity, and low residue, and have strong contact and stomach toxicity to pests. They can effectively control various crop pests such as aphids, cabbage caterpillars, cotton bollworms, etc.

合成萘系殺蟲劑：精萘可用于合成一些以萘為基本結(jié)構(gòu)的殺蟲劑，如萘甲酰亞胺類殺蟲劑。這類殺蟲劑作用機制獨特，對害蟲的神經(jīng)系統(tǒng)等具有干擾作用，能有效控制害蟲的生長和繁殖，對一些刺吸式口器害蟲，如白粉虱、薊馬等有較好的防治效果。

Synthetic naphthalene insecticides: Refined naphthalene can be used to synthesize insecticides with naphthalene as the basic structure, such as naphthalimide insecticides. This type of insecticide has a unique mechanism of action and interferes with the nervous system of pests, effectively controlling their growth and reproduction. It has good control effects on some piercing sucking mouthparts pests, such as whiteflies and thrips.

合成殺菌劑：精萘能夠參與合成某些具有殺菌活性的化合物。例如，一些含有萘環(huán)結(jié)構(gòu)的殺菌劑，可用于防治農(nóng)作物的真菌性病害，如小麥銹病、黃瓜白粉病等，通過抑制真菌的生長和繁殖，保護農(nóng)作物免受病菌侵害。

Synthetic fungicides: Naphthalene can participate in the synthesis of certain compounds with bactericidal activity. For example, some fungicides containing naphthalene ring structures can be used to prevent and control fungal diseases of crops, such as wheat rust and cucumber powdery mildew, by inhibiting the growth and reproduction of fungi, protecting crops from bacterial invasion.

作為農(nóng)藥增效劑

As a pesticide enhancer

精萘可以作為農(nóng)藥增效劑使用，將其添加到農(nóng)藥配方中，能夠增強農(nóng)藥的藥效。它可以改變農(nóng)藥在農(nóng)作物表面的附著性和滲透性，使農(nóng)藥更好地被農(nóng)作物吸收，提高農(nóng)藥的利用率，從而在一定程度上減少農(nóng)藥的使用量，降低農(nóng)藥殘留和對環(huán)境的污染，同時還能提高防治效果。

Naphthalene can be used as a pesticide enhancer, and adding it to pesticide formulations can enhance the efficacy of pesticides. It can change the adhesion and permeability of pesticides on the surface of crops, making them better absorbed by crops, improving the utilization rate of pesticides, thereby reducing the use of pesticides to a certain extent, reducing pesticide residues and environmental pollution, and also improving the effectiveness of prevention and control.

作為驅(qū)蟲劑

As an insect repellent

精萘具有一定的特殊氣味，對一些害蟲和昆蟲具有驅(qū)避作用。在農(nóng)業(yè)生產(chǎn)中，有時會利用精萘的這一特性，將其制成驅(qū)蟲劑，用于保護農(nóng)作物免受害蟲侵害。比如，在倉儲糧食中放置含有精萘的驅(qū)蟲劑，可以防止害蟲如米象、麥蛾等對糧食的侵害，起到保護糧食質(zhì)量和安全的作用。在一些果園中，也會使用含有精萘的驅(qū)蟲劑來驅(qū)趕果蠅等害蟲，減少害蟲對果實的危害

Naphthalene has a certain special odor and has a repellent effect on some pests and insects. In agricultural production, the characteristic of refined naphthalene is sometimes utilized to make insect repellents, which are used to protect crops from pest infestations. For example, placing insect repellents containing naphthalene in stored grain can prevent pests such as rice weevils and wheat moths from damaging the grain, thus protecting the quality and safety of the grain. In some orchards, insecticides containing naphthalene are also used to drive away pests such as fruit flies and reduce their harm to the fruit