Insect Magnet - Oriental Mole Cricket Specimen

Pricing & History

Sold for
Start Free Trial or Sign In to see what it's worth.
Sold Date
Source eBay UK

Insect Magnet Real Oriental Mole Cricket – Gryllotalpa orientalis specimenencased in our proprietary developed lucite material. Safe,authentic and completely unbreakable specimen put cricket right at your fingertips! Anyone can safely explore the cricket from every angle. It is clear enough for microscope observation. Length of the cricket's body is 3.0 cm. Size of the lucite block is 4.5x3.0x2.5 cm. Weight of the block is 30 g and 45 g with packing box. The magnet is strong enough to attach to any iron surface. It is an ideal learning aid for students and kids and also a very good collectible item for every body. *** Wholesale is welcome. I have a lot more insect specimen items in my ebay store( /Gao-Fu-Collectibles ), you may log in my store to view the details. Shipping cost: Free shipping cost. Goods will be sent by airmail from Hong Kong and it may take 7-14 days to arrive. I can do combined shipping if buyer also buys other items in my store. *** Oriental Mole Cricket – Gryllotalpa orientalis Order Orthoptera Family Gryllotalpidae Economic importance Mole crickets are polyphagous. They feed on the underground parts of almost all upland crops. They occasionally cause heavy damage to the roots and basal parts of rice plants growing in raised nursery beds or upland conditions. In wetland rice, infestation occurs when there is no standing water. No recorded outbreak of this pest is known. Geographical distribution China, Afghanistan, Australia, Bangladesh, Bhutan, Cambodia, India, Indonesia, Japan, Lao PDR, Malaysia, Myanmar, Nepal, Pakistan, Papua New Guinea Philippines, Thailand, and Vietnam. Morphology Egg The egg is oblong to oval and gray with a shiny surface. It is 2.6 mm long and 1.7 mm broad. The eggs are deposited in a hole constructed by the adult female. Nymph The newly hatched nymph has a white and bluish prothorax and legs. The nymph later turns gray to black with white markings. The last nymphal stage is similar to the adult except for its short wing pads. Adult The adult mole cricket is brownish and very plump, measuring 25-40 mm long. It has short antennae. The enlarged front legs are modified for digging. Symptoms Feeding on seeds and roots results in loss of plant stand in upland rice. In older plants, tillers are also fed upon. Biology and ecology The eggs are laid in hardened cells constructed in the soil by the females. One cell usually contains 30-50 eggs. Egg incubation varies from 15 to 40 days. The hatching nymphs feed on roots and damage the crops in patches. The nymphs have limited migrating ability and generally suffer heavy mortality. Nymphal development takes 3-4 months. The insect has only one generation per year in the temperate region. In flooded rice fields, mole crickets are usually seen swimming on the water. Their low population density is due to cannibalism. Host range The host range of G . orientalis includes the following: Allium cepa L. (onion), Brassica oleraceae L. (cabbage), Camellia sinensis (L.) O. Ktze. (tea), Helianthus annuus L. (sunflower), Hordeum sp. (barley), Nicotiana tabacum L. (tobacco), Oryza sativa L. (rice), Solanum tuberosum L. (white potato), and Triticum aestivum L. em. Thell. (wheat). Detection and inspection The rice field can be checked for damage symptoms by using a light trap. Cut seedlings are indicative of the insect’s feeding damage. Management Cultural control Standing water can help eliminate the eggs of mole crickets on the soil. In infested areas, the rice field can be flooded for 3-4 days. Construction of a raised nursery should be avoided to reduce feeding damage on seedlings. Biological control Natural enemies include Chlaenius sp., Labidura sp., Larra amplipennis... read more

Items in the Price Guide are obtained exclusively from licensors and partners solely for our members’ research needs.

Flag item for content or copyright

If this item contains incorrect or inappropriate information please contact us here to flag it for review.

If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.