Trichogramma wasp larvae provide natural pest control by eating insect eggs, especially those of cabbage worms, codling moths and european corn borers. For medium and heavy infestations, 50,000 and 100,000 trichogramma, respectively, should be released twice each week. Mass rearing and release of trichogramma for biological. Is isaria fumosorosea selective to trichogramma pretiosum.
Trichogramma release techniques rinconvitova insectaries. Selection of trichogramma species as potential natural. Trichogramma galloi and trichogramma pretiosum for the management 691 pesq. A parasitoid larva feeds like a true parasite on or inside a unique living host, obtaining. Biological control with trichogramma pretiosum increases. In the three media, the specific activity for all free aa was quite high up to 15000 cpm nmol, while the specific activity for total free and protein aa in the pupal body was lower. Trichoforce pl trichogramma platneri or trichoforce m trichogramma minutum this is the ideal product for moth control in orchards or tall. Eficiencia trichogramma galloi no combate a diatraea saccharalis na canade acucar em passos mg brasil article pdf available december 2012 with 232 reads how we measure reads. Naturally occurring egg parasitoids of the genus trichogramma hymenoptera. Trichogrammaemerging from a host corn earworm moth egg. Trichogramma definition is a genus of minute hairywinged chalcid flies that are parasitic as larvae in the eggs of other insects. They are a very efficient destroyer of the eggs of more than 200 species of moths and butterflies lepidoptera which are leaf eaters in their caterpillar stage.
A taxonomic genus within the family trichogrammatidae certain parasitoid wasps. They are entomaphagous parasitoids that deposit their own eggs inside the hosts eggs, consuming the host. Trichogramma brassicae is a species of parasitoid wasps from the trichogrammatidae family. Moth egg parasite trichogramma wasp planet natural. Vii parasitoid wasps, natural enemies of insects a. Trichogrammatidae for biological control of european corn borer lepidoptera. An trichogramma perkinsi in nahilalakip ha genus nga trichogramma, ngan familia nga trichogrammatidae. Trichogramma wasps are very sensitive to insecticides and are best suited to those crops grown organically or under integrated pest management. Trichogramma parasitic wasps for control of moth eggs and. A potential solution for organic maize is to apply the biological control agent trichogramma pretiosum to reduce s. Trichogramma wasps emerge from cards in two to five days, depending on temperature, which should ideally be 80. Trichogramma is one of around 80 genera from the family trichogrammatidae, with. Trichogrammatidae what to look for trichogramma wasps are used worldwide as highly effective biocontrol agents. Below are typical questions asked and our recommendations based on current knowledge.
Trichogramma species parasitize eggs of over 200 species of moth and caterpillars. Effect of temperature, relative humidity, and free water on the. Pdf trichogramma galloi and trichogramma pretiosum for. She injects a single egg into the eggs of the pest. Trichogramma wasps helps with natural pest control mother.
Parasitism of corn earworm in corn in california averaged 38 percent, yet 99 percent of the ears were infested with an average of three larvae 59. Trichogrammatidae reared in vitro and in vivo article pdf available in annals of the entomological society of america 896. Trichogramma perkensi girault an trichogramma perkinsi 2 4 5 6 in uska species han hymenoptera nga ginhulagway ni girault hadton 1912. Trichogramma brassicae, minutum and platneri mixed all on one card trichogramma are among the smallest insects, having a wingspread of about 150th of an inch. Description trichogramma is a minute parasitic wasp, that attacks the eggs over 150 species of moths, including cabbage looper, codling moth, oriental fruit. Trichogramma are even used against lepidoptera in stored grain, where trichogramma evanescans and t. Effect of host availability and egg load in trichogramma platneri nagarkatti brazilian archives of biology and technology 415 experimental protocol host scarcity effect on wasp fecundity and longevity newly emerged t. Reports from former soviet republics indicate that 20,000 trichogramma per acre, or 1 parasite. Using trichogramma in cotton ipm programs research into the use of trichogramma in cotton is ongoing. After consuming the contents of its host egg, a new adult emerges within a week. Trichogramma chilonis, chilo sacchariphagus, diapause, quiescence, stockage, lutte biologique, canne a sucre.
Trichogramma wasp definition is any of a genus trichogramma of minute chalcid wasps that are parasitic as larvae in the eggs of other insects and are used in the biological control of. Because of this quick turnover, trichogramma wasps multiply rapidly given the right conditions. The species of trichogramma in japan, with descriptions of two new species. Description trichogramma is a minute parasitic wasp, that attacks the eggs over 150 species of moths, including cabbage looper, codling moth, oriental fruit moth, twig borers and fruitworms. Trichogramma definition of trichogramma by merriamwebster. Trichogramma pretiosum although a tiny wasp is a very aggressive parasitoid. Trichogramma species are difficult to identify due to their minute size and generally uniform morphological features. Trichogramma are tiny wasps that kill the eggs of lepidoptera by laying one or more of their own eggs inside the much larger eggs of lepidoptera. Artificial diet for rearing trichogramma wasps hymenoptera. In order to evaluate the efficacy of egg storage in liquid nitrogen, we examined the parasitism, development and.
Description trichogramma is a minute parasitic wasp, that attacks the eggs over 150 species of moths, including cabbage looper, codling moth, oriental fruit moth, twig borers and. The trichogramma egg hatches into a small larva, which feeds on the inside of the moth eggs, killing it. Wasps in the genus trichogramma are tiny beneficial wasps that feed on the eggs of several insect pests. Parasitism rates in insecticide free fields during a 3year study averaged less than 5 percent with a peak of 40 percent 43. Trichogramma wasps used as biocontrol agents in the greater. Bone encyclopedia of life support systems eolss generally does not kill and predator which kill the prey or host behaviors. The adult wasp lays an egg within a recently laid host egg, and as the wasp larva develops, it eats the host embryo, causing the egg to turn black. Trichogramma for moth and caterpillar control beneficial.
B m c potential of trichogramma ostriniae hymenoptera. Eggs are laid clustered in a monolayer and are initially white, becoming yellowish and then reddish when close to eclosion. The female trichogramma is prolific during a lifespan that is less than two weeks. Trichogramma wasp definition of trichogramma wasp by. Ipm, banana moth, biological control selection of trichogramma species as potential natural enemies for the control of. Trichogramma pretiosum have been successfully used in crops such as tomatoes, sweet corn, capsicum, french beans, cut flowers, lettuce, cotton, strawberries and such tree crops as citrus and avocados. Mar 18, 20 trichogramma wasp larvae provide natural pest control by eating insect eggs, especially those of cabbage worms, codling moths and european corn borers.
Trichogrammes, en collaboration avec les instituts techniques locaux f. Trichogramma a genus of ichneumon flies of the order hymenoptera that parasitize insect eggs. Trichogrammatidae in a pomegranate orchard in tunisia. Trichogramma is one of around 80 genera from the family trichogrammatidae, with over 200 species worldwide. There are numerous species of trichogramma wasps that attack the eggs of over 200 species of moths and butterflies. A molecular key to the common species of trichogramma of the. When the wasp eggs hatch, the larvae devour the developing caterpillar inside the moth egg. Ultrastructure of the natural and factitious host eggs of.
The storage of host eggs in liquid nitrogen may represent an alternative method in the mass production of trichogramma. The trichogramma larvae pupate and grow into fully formed wasps inside the moth eggs. Trichogramma galloi and trichogramma pretiosum for the. A new species of trichogramma westwood hymenoptera. Dispersal of trichogramma galloi in corn for the control. Pdf eficiencia trichogramma galloi no combate a diatraea. Effect of host availability and egg load in trichogramma. Use of trichogramma in other crops and commodities in the u. Discussions about the biology, behavior, genetics and taxonomy of trichogramma eggparasitoids, and other eggparasitoids are welcome. Despite its size, this parasitic wasp is an efficient destroyer of the eggs of more than 200 species of moths and butterflies which are leaf eaters in the larval stage. Spodoptera frugiperda is a major pest causing maize yield loss in brazil. A molecular key to the common species of trichogramma of the mediterranean region fahriye sumer. Trichogramma article about trichogramma by the free dictionary. Trichogramma is a genus of minute polyphagous wasps that are endoparasitoids of insect eggs.
A molecular key to the common species of trichogramma of. Trichogramma wasp definition is any of a genus trichogramma of minute chalcid wasps that are parasitic as larvae in the eggs of other insects and are used in the biological control of lepidopteran pests. Trichogrammatidae in biological control requires a very large number of insects to be released within an area. Discussions about the biology, behavior, genetics and taxonomy of trichogramma eggparasitoids, and other egg. To help rice farmers in the greater mekong region, a project was launched in 2011 to promote the establishment of trichogramma massproduction facilities and affordable and practical pest control methods.
They are entomaphagous parasitoids that deposit their own eggs inside the hosts eggs, consuming the host egg material and emerging upon full development. Emergence can be delayed by holding parasitized moth eggs at cooler temperatures not less than 40. Request pdf dispersal of trichogramma galloi in corn for the control of diatraea saccharalis dispersal of natural enemies is an important part of a biological pestcontrol programme. Despite the widespread use of trichogramma, there are relatively few cases where the successful control of a pest can be unequivocally ascribed to releases of these. Arthropod biology biology of trichogramma galloi t. Pdf the objective of this work was to determine the ideal number for field release of trichogramma galloi and t. It mainly parasitizes lepidopteran hosts in agricultural fields. Female wasps lay their eggs inside the eggs of a host insect. There is therefore a need for control methods, notably for organic farming because classical pesticides are not allowed.
647 1221 1045 206 1270 1046 163 1361 1051 377 853 809 852 1202 390 324 260 1437 232 730 1040 778 1243 1464 1068 874 87 914 1448 1183 1281