2 edition of imported cabbage webworm [Hellula undalis Fab.] found in the catalog.
imported cabbage webworm [Hellula undalis Fab.]
F. H. Chittenden
|Statement||By F. H. Chittenden and H. O. Marsh.|
|Series||U. S. Dept. of agriculture. Bureau of entomology. Bulletin, no. 109, pt. 3. Papers on insects affecting vegetables|
|Contributions||Marsh, Harold Oscar, 1885-1918, joint author.|
|LC Classifications||SB823 .A2 no. 109, pt. 3|
|The Physical Object|
|Pagination||iii p., p. 23-45.|
|Number of Pages||45|
|LC Control Number||agr12000683|
A cabbage looper (Trichoplusia ni, family Noctuidae), of much of the northern hemisphere. A cabbage webworm (Hellula undalis, family Crambidae) native to southern Europe or Asia that also injures cabbages and other vegetables in the Gulf states of the United States. Image is of cabbage webworm (Hellula undalis) larva(e). It is by Merle Shepard, Gerald , and P.A.C Ooi at Insects and their Natural Enemies Associated with Vegetables and Soybean in Southeast Asia.
Some important pests include the Cabbage whites (Small White: Pieris rapae, Large White Pieris brassicae), the Diamond-back moth (Plutella xylostella) and the Cabbage Webworm (Hellula undalis). But caterpillars of several other Lepidoptera can also feed on the plants. Other insect pests include aphids, cabbage flies, and flea beetles. Diseases. CABBAGE WEBWORM (Hellula rogatalis) It has brownish-yellow front wings mottled with darker brown and pale gray rear wings. Moths lay grayish-white eggs near the buds of young host plants. As the plants mature, moths begin to lay their eggs on the underside of leaves in the angle along the leaf stems. 7.
The occurrence of webworm larvae and plant damage was identified as leaves held together with silk. Each female cabbage webworm (H. undalis) lays about 75– eggs singly or in groups of 2–3 on the inner tissues of host plants. The hatching larvae bore into stems of growing points, weaving webs into which they place their frass. Sâu kéo màng, Hellula undalis Fab. (Lepidoptera: Crambidae) là loài sâu hại rau cải họ Brassicaceae quan trọng ở Đồng bằng sông Cửu Long. Nhằm tạo thông tin cơ sở cho các nghiên cứu về xây dựng chiến lược quản lý tổng hợp (IPM) .
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The imported cabbage webworm [Hellula undalis Fab.] (U. Dept. of agriculture. Bureau of entomology. Bulletin) Unknown Binding – January 1, by F.
H Chittenden (Author) See all formats and editions Hide other formats and editions. The Amazon Book Review Book recommendations, author interviews, editors' picks, and more. Author: F. H Chittenden. Cabbage webworm in Africa (red marked).
Updated on 10 July Source Plantwise Knowledge Bank. The cabbage webworm (Hellula undalis) is an important pest of brassicas in many parts of the world.
In Africa, it occurs in Eastern and Southern Africa region. Hellula undalis is a harmful insect pest of green mustard in the Mekong Delta of Vietnam. In order to establish a tool for a sustainable pest control.
The cabbage webworm, Hellula undalis (F.) is a major pest of cruciferous vegetables in the lowlands of Malaysia. The common host plants include cabbage, radish, cauliflower, Chinese kale, Chinese mustard and the Cleome weed spp. Damage by cabbage webworm is particularly serious on cabbage because damage on the shoot.
The result of damage caused by the cabbage webworm, Hellula?undalis, as shown in Photo 1. The terminal shoot has been destroyed and side shoots have developed producing many small clusters of leaves. Summary. Worldwide distribution. On members of the brassica family, i.e., cabbage, cauliflower, Chinese cabbage and radish, but also amaranth and.
The biology of Hellula undalis (F.), an important pest of brassicas in Peru, was studied in the field and in the laboratory at about 27 deg C and 65% RH. Four complete generations were studied.
Under the laboratory conditions, there was a progressive reduction in the duration of the life-cycle, the reproductive capacity, the fecundity of the females and the viability of the eggs. Cabbage webworm (Hellula undalis) Minor Pest Description: Caterpillars are cm when fully-grown, creamy-white in colour with brown stripes along the body and a brown head.
Caterpillars feed on leaves, petioles, growing points, and stems. Minor Pest What to do. One is the cabbage webworm (Hellula undalis). A cabbage webworm feeding on a leaf. Photo: 4 shares; Share 0; Tweet 0; Share 0; Print 4; Email 0; This is present only during the warmer months.
The caterpillar is 12mm to 15mm long and yellowish-tan with light brown longitudinal stripes and a black head. A single webworm can ruin.
General Information Common name: Cabbage webworm Scientific name: Hellula undalis Lepidoptera:Pyralidae Synonyms: Cabbage borer, Cabbage center grub, Cauliflower head borer, Imported cabbage webworm, Oriental cabbage webworm, Old world webworm, Striped cabbage heart caterpillar, Webworm cabbage (CABI, ).
Old World Webworm Hellula undalis (Fabricius, ) Wingspan c. 18mm. Moth Books. Concise Guide to the Moths of Great Britain Martin Townsend and Paul Waring (Illustrated by Richard Lewington) British Pyralid Moths Barry Goater (Illustrated by. In Taiwan, it was found that variety B of Chinese cabbage was the least damaged by H.
undalis (AVRDC, ). Inresearch at the same centre found B, B, B and B to be the least affected by H. undalis. Chemical Control.
The cabbage webworm, Hellula undalis (Fabricius) (Lepidoptera: Pyralidae), a native of Europe, has been one of the most serious pests of brassicas and other crucifers in. The cabbage webworm (Hellula undalis) is a widely distributed webworm native to southern Europe or Asia that also injures cabbages and other vegetables in the Gulf states of the United States.
The diamondback moth (Plutella xylostella or, in some literature known by the synonym P. maculipennis) is a member of the moth family Plutellidae. Hellula undalis, the cabbage webworm or Old World webworm, is a moth of the family is a widespread species which is found from Europe across Asia to the was first described from Italy.
The wingspan is about 18 mm. Adult moths have fawn forewings, each with sinuous pale lines and a kidney-shaped mark. The hindwings are a uniform grey. THE IMPORTED CABBAGE WEBWORM.3 almost without exception, ignorant of methods of control, and as a result much of the crop is injured and the growers become discour-aged and plant other crops which are less damaged by insects.
Among these insects are the common cabbage worm (Pontia rape L.), the imported cabbage webworm (Hellula undalis Fab.), cut However, cabbage is susceptible to insect pest infestations in the field, which causes huge loses to the growers [1,7].The major insect pests infesting cabbages in Africa include the diamondback moth (Plutella xylostella), the cabbage webworm (Helula undalis), cabbage white butterfly (Pieris brassicae), cabbage aphid (Brevycoryne brassicae), cabbage looper (Trichoplusia ni).
Cabbage Webworm. The cabbage webworm (Hellula rogatalis) is the larva (caterpillar) of a moth that has brownish-yellow front wings mottled with darker brown and pale gray rear wings. The moths have a wingspread of a little more than ½ inch ( cm).
Imported Cabbageworm. The imported cabbageworm (Pieris rapae) is the larva (caterpillar. This pest attacks cabbage, broccoli, cauliflower and other crucifers. Producers should monitor for this insect along with imported cabbageworm, diamondback moth, cross-striped cabbageworm and cabbage looper.
Figure 1. Cabbage webworm is uncommon but can occur in Kentucky. The cabbage webworm is easily recognized. Pests’ of Cabbage The major pests of cabbage which infested the plant during the period of study were: the cabbage aphid, Brevicoryne brassicae(L.), diamondback moth, Plutella xylostella(L.), the cabbage webworm, Helula undalis (Fab.) and the cabbage looper, Trichoplusia ni(Hub).
These pests infested the plants at different growth stages. Cabbage Webworm (Hellula undalis) Among the most destructi ve insect pe sts which attac k cruciferous vegetables is the ca bbage webworm (Figure 2A) (Hellula undalis).
Cabbage webworm definition is - a widely distributed webworm (Hellula undalis) native to southern Europe or Asia that injures cabbages and other vegetables in the Gulf states.
Bacillus thuringiensis toxins and/or formulations were found to be effective against P. xylostella, cabbage cluster caterpillar (Crocidolomia pavonana Fab.) and cabbage webworm (Hellula undalis Fab.) in Taiwan (Srinivasan and Hsu, ).(). A control method for Hellula undalis Fab.
(Pyralidae), a pest of vegetables. (). A correction in the synonymy of the cabbage webworm (Hellula undalis ().
A gamasid mite (Typblodromus thripsi novo spec.), a predator of Tbrips tabaci Und. ().