【正文】 on many crops in different parts of the world. It can cause severe damage in many crops. :A polyphagous cutworm attacking the seedlings of most crops, in particular on cotton, rice, potato, tomato, tobacco, cereals, and crucifers. :Almost pletely cosmopolitan, from northern Europe, Canada, Japan, down to New Zealand, South Africa, and South America. It has not been recorded to date from a few areas in the tropics. :The young larvae feed on the leaves of the host plants。 the older caterpillars feed at the base of crop plants or on the roots or stems underground. Seedlings are typically cut through at the ground level。 one caterpillar may destroy a number of seedlings in this manner in a single night, often working along the plant rows. 5. Life cycle:The life cycle from egg to adult takes 32 days at 30℃ , 41 days at 26℃ , and 67 days at 20 ℃ , respectively. Adult: The adults are large, dark noctuids with wingspan of 4050 mm, with a gray body。 and gray forewings are almost white basely but with a dark terminal fringe, paler in the males. Egg: The eggs are white, globular, and ribbed, mm in diameter. Larva: The larvae are brownish above with a broad pale gray band alone the midline, and with graygreen sides with lateral blackish stripes. The head capsule is brownishblack with two white spots. The general appearance of the caterpillar is blackish, hence the mon name of ‘black cutworm’. The mature caterpillar is 2535 mm long. Pupa: The pupa is dark brown, 20 mm long, with a posterior spine. Larva Adult Seeding is cut through at the ground level. Damage 小地老虎 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 plants:The insect can attacks Pigeon pea, lima bean, green peas, cowpeas, and other Leguminosae. :Almost pletely pantropical regions in distribution, extending up into the subtropics and warmer temperate areas, but only a few record from Australia. :Early instar larvae feed inside the developing seeds, but later instars feed freely inside the pods. The immature caterpillar may leave the original pod and perate one or more fresh pods before reaching is very mon pest of pigeon pea and other legume crops in many parts of the world。 sometimes recorded as a serious pest. ? Adult: The adult moth is brown, with a wingspan of 2427 mm. There are two white and transparent spots in the middle of the forewing. ? Egg: The eggs are oval, shiny white, mm in length. They are laid singly or in small groups (up to 6) on immature pods. ? Larva: The caterpillar is blue with a yellow head, and 1217 mm long when mature. Caterpillar wriggles very violently if the pod is opened and it is disturbed. ? Pupa: When the larva is fullgrown it leaves the pod, drops into the ground. And about 3 cm below soil level it spins a cocoon and here it turns into a yellowishbrown pupa with 610 mm long. 豇豆莢螟 Adult Damage Larva8/28/2022 品質(zhì) 創(chuàng)新 湯普森 豇豆莢螟 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 ?俗稱：豇豆螟、豇豆蛀野螟、豆野螟、豆莢野螟 ?Common name: Pea pod borer ?分類地位：鱗翅目，螟蛾科 ?寄主：豆科植物 ?豇豆、菜豆、扁豆、四季豆、蠶豆、大豆等。以豇豆受害最重。 豇豆莢螟 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 成蟲 蛹 幼蟲 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 豇豆莢螟為害花蕾 幼蟲蛀入豆莢中為害 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 農(nóng)業(yè)防治 ? 田園清潔 Field sanitation ? 定期清理田間落花落莢及枯葉，消滅越冬寄主源。 ? 燈光誘殺 – 在大面積連片種植豆類蔬菜的地方，于 510月間用黑光燈誘殺成蟲。 8/28/2022 品質(zhì) 創(chuàng)新 湯普森 化學(xué)防治 ? 防治適期 – 從始花期開始噴藥，每隔 57天噴花、蕾一次。 ? 常用藥劑 – 康剎 1號 6克配增品 1包 1桶水噴霧； – 3%甲維鹽 EC100毫升兌水 210240斤水噴霧 – %毒氯 300270斤水噴霧； – 25%甲維鹽硫雙威 WP10克 1包 1桶水噴霧；