| 张中润，王金辉，黄伟坚，黄海杰，梁李宏*.海南腰果云翅斑螟发生为害特点[J].植物保护,2012,38(5):158-161. |
| 海南腰果云翅斑螟发生为害特点 |
| Occurrence and damage characteristics of the apple and nut borer Nephopteryx sp. in Hainan |
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| DOI： |
| 中文关键词: 腰果云翅斑螟 腰果 为害特点 被害率 侵入率 |
| 英文关键词:Nephopteryx sp. cashew damage characteristic damage rate invasive rate |
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| 中文摘要: |
| 选择5年生腰果园，对腰果不同坐果期腰果云翅斑螟幼虫发生为害特点进行了研究。结果表明，腰果果梨的被害率显著高于坚果被害率。不同部位的侵入率从高到低为果梨端部（果端）＞果梨基部（果基）＞坚果基部（坚基）＞坚果中部（坚中）＞果梨中部（果中）＞果柄＞坚果端部（坚端），果端侵入率显著高于其他部位。不同方位腰果果实被害率及果虫量差异均不显著。田间不同龄期腰果云翅斑螟幼虫比率由高到低为3龄＞4龄＞5龄＞2龄＞1龄，3龄幼虫比率显著高于其他龄期。单果虫口数在1~6头范围内时彼此之间差异显著，最高单果虫口数12头，单果虫口数越多，比率越低。在田间应根据其为害特点开展针对性的防治。 |
| 英文摘要: |
| The occurrence and damage characteristics of Nephopteryx sp. were studied in 5 year old cashew plantation under field natural conditions. The results showed that the damage rate of cashew apple was significantly higher than that of cashew nut. The invasive rate of different positions from high to low could be ranked as followed: apple end, apple basal, nut basal, nut middle, apple middle, fruit stalk and nut end. Most Nephopteryx sp. larvae invaded from the apple end parts, and the invasive rate of this part was significantly higher than those of other parts. The fruit damage rate and larval number per fruit in different directions both had no significant differences. The rates of different instars of Nephopteryx sp. larvae from high to low could be ranked as followed: 3rd instar, 4th instar, 5th instar, 2nd instar and 1st instar, and the rate of 3rd instar was significantly higher than those of other instars. The rates were significantly different from each other when Nephopteryx sp. larval numbers per fruit were between 1-6; the highest larval number per fruit is 12; the fruits with more larvae had lower rate. Pertinent control measures should be applied in the cashew plantations according to the occurrence and damage characteristics of Nephopteryx sp. |
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