MD1003Z - Process for mass rearing of entomophage Trichogramma evanescens W - Google Patents

Process for mass rearing of entomophage Trichogramma evanescens W Download PDF

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Publication number
MD1003Z
MD1003Z MDS20150109A MDS20150109A MD1003Z MD 1003 Z MD1003 Z MD 1003Z MD S20150109 A MDS20150109 A MD S20150109A MD S20150109 A MDS20150109 A MD S20150109A MD 1003 Z MD1003 Z MD 1003Z
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Moldova
Prior art keywords
eggs
entomophage
trichogramma evanescens
mass
trichogramma
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MDS20150109A
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Romanian (ro)
Russian (ru)
Inventor
Виктор ГОРБАН
Лидия ГАВРИЛИЦА
Василе ВОЙНЯК
Тудор НАСТАС
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Институт Генетики, Физиологии И Защиты Растений Академии Наук Молдовы
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Priority to MDS20150109A priority Critical patent/MD1003Z/en
Publication of MD1003Y publication Critical patent/MD1003Y/en
Publication of MD1003Z publication Critical patent/MD1003Z/en

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Abstract

The invention relates to agriculture, namely to a process for mass rearing of entomophage Trichogramma evanescens W.The process, according to the invention, provides for the sterilization of Sitotroga cerealella O. grain moth eggsby treating them for 4…5 min with infrared rays with a wavelength of 750…1000 nm from a source with a power of 250 W, situated at a distance of 250…300 mm from the eggs placed in a layer, their subsequent maintenance at the temperature of 23…25°C and relative humidity of 75…85% for 5…7 days, separation of sterile eggs and rearing of entomophage with their use.

Description

Invenţia se referă la agricultură, şi anume la un procedeu de înmulţire în masă a entomofagului Trichogramma evanescens W. The invention relates to agriculture, namely to a process for mass propagation of the entomophagous Trichogramma evanescens W.

Invenţia se utilizează, în special, pentru înmulţirea insectelor benefice folosite pentru protecţia biologică a plantelor. The invention is used, in particular, for the propagation of beneficial insects used for biological plant protection.

Este cunoscut modul de sterilizare prin utilizarea mutagenilor fizici (radiaţie gamma, izotopi de cobalt, cesiu şi alte elemente) sau chimici (anumiţi agenţi de alchilare, în special derivatele etilendiamina, şi anumiţi antimetaboliţi), care induc mutaţii letale dominante pupelor sau adulţilor insectelor dăunătoare. Sterilization is known to be achieved by using physical mutagens (gamma radiation, isotopes of cobalt, cesium and other elements) or chemical mutagens (certain alkylating agents, especially ethylenediamine derivatives, and certain antimetabolites), which induce dominant lethal mutations in the pupae or adults of harmful insects.

Cea mai apropiată soluţie este procedeul de producere în masă a Trichogramma evanescens W., care prevede înmulţirea acestuia la temperatura de 23…25°C şi umiditatea relativă a aerului de 75…85% pe ouă de molie cerealieră Sitotroga cerealella O. tratate în prealabil cu raze gamma în doză de 200…650 Gy [1]. The closest solution is the mass production process of Trichogramma evanescens W., which involves its multiplication at a temperature of 23…25°C and a relative air humidity of 75…85% on Sitotroga cerealella O. grain moth eggs previously treated with gamma rays at a dose of 200…650 Gy [1].

Dezavantajul procedeelor cu utilizarea mutagenilor constă în faptul că au o toxicitate ridicată, uneori şi o acţiune cancerigenă, de aceea nu pot fi aplicate pe larg atât timp cât nu vor avea un efect selectiv şi relativ sigur pentru personalul de lucru. Efectuarea procesului de iradiere cu raze gamma necesită instalaţii costisitoare, personal pregătit şi cerinţe speciale faţă de condiţiile de lucru. The disadvantage of processes using mutagens is that they have a high toxicity, sometimes a carcinogenic effect, therefore they cannot be widely applied as long as they do not have a selective effect and are relatively safe for the working personnel. Carrying out the gamma ray irradiation process requires expensive installations, trained personnel and special requirements for working conditions.

Problema pe care o rezolvă invenţia constă în majorarea eficacităţi procesului de înmulţire în masă a entomofagului Trichogramma evanescens W., micşorarea pierderilor de material biologic prin păstrarea o perioadă îndelungată a ouălor de insecte-gazdă (molia cerealelor Sitotroga cerealella O.) tratate cu raze infraroşii cu efect de sterilizare şi folosite în calitate de substrat nutritiv, totodată asigurând condiţii inofensive de lucru. The problem solved by the invention consists in increasing the efficiency of the mass propagation process of the entomophagous Trichogramma evanescens W., reducing the loss of biological material by preserving for a long period the eggs of host insects (cereal moth Sitotroga cerealella O.) treated with infrared rays with a sterilizing effect and used as a nutrient substrate, while ensuring harmless working conditions.

Procedeul de înmulţire în masă a entomofagului Trichogramma evanescens W. prevede sterilizarea ouălor de molie cerealieră Sitotroga cerealella O. prin tratarea acestora în decurs de 4...5 min cu raze infraroşii cu lungimea de undă de 750...1000 nm de la o sursă cu puterea de 250 W, situată la distanţa de 250...300 mm de la ouăle amplasate într-un strat, menţinerea lor ulterioară la temperatura de 23…25°C şi umiditatea relativă a aerului de 75…85% în decurs de 5…7 zile, separarea ouălor sterile şi înmulţirea entomofagului cu utilizarea acestora. The mass propagation process of the entomophage Trichogramma evanescens W. provides for the sterilization of the eggs of the grain moth Sitotroga cerealella O. by treating them within 4...5 min with infrared rays with a wavelength of 750...1000 nm from a source with a power of 250 W, located at a distance of 250...300 mm from the eggs placed in a layer, their subsequent maintenance at a temperature of 23...25°C and a relative air humidity of 75...85% within 5...7 days, separation of the sterile eggs and propagation of the entomophage using them.

Rezultatul constă în majorarea randamentului, păstrând calităţile nutritive ale ouălor utilizate în calitate de gazdă la creşterea în masă a entomofagului Trichogramma evanescens W. The result is an increase in yield, while preserving the nutritional qualities of the eggs used as hosts for the mass rearing of the entomophagous Trichogramma evanescens W.

Înmulţirea entomofagului Trichogramma evanescens W. se efectuează la temperatura de 23…25°C şi umiditatea relativă a aerului de 75…85% pe ouă de molie cerealieră Sitotroga cerealella O. tratate prealabil cu raze infraroşii. Ouăle de molie cerealieră Sitotroga cerealella O. tratate sunt amplasate în condiţii optimale de dezvoltare a larvelor la temperatura de 23...25°С şi umiditatea relativă a aerului de 75…85% în decurs de 5...7 zile, timp în care eclozează larvele din ouăle fertile, care sunt separate ulterior, iar ouăle sterilesunt utilizate pentru creşterea în masă a entomofagului Trichogramma. The multiplication of the entomophage Trichogramma evanescens W. is carried out at a temperature of 23...25°C and a relative air humidity of 75...85% on the eggs of the grain moth Sitotroga cerealella O. previously treated with infrared rays. The treated eggs of the grain moth Sitotroga cerealella O. are placed in optimal conditions for the development of larvae at a temperature of 23...25°С and a relative air humidity of 75...85% for 5...7 days, during which time the larvae hatch from the fertile eggs, which are subsequently separated, and the sterile eggs are used for the mass breeding of the entomophage Trichogramma.

Majorarea eficacităţi procesului de înmulţire în masa a entomofagului Trichogramma evanescens W. pe ouă de insecte-gazdă (molia cerealelor Sitotroga cerealella O.), folosite în calitate de substrat nutritiv, se datorează faptului că acestea sunt supuse sterilizării prin utilizarea razelor infraroşii, care au proprietăţi fizice de a pătrunde sub corionul ouălor, acţionând termic asupra embrionului, ca rezultat încetează dezvoltarea de mai departe a larvelor, în acelaşi timp ouăle sterilizate îşi păstrează calităţile nutritive necesare pentru dezvoltarea entomofagului Trichogramma evanescens W. The increase in the efficiency of the mass multiplication process of the entomophage Trichogramma evanescens W. on host insect eggs (cereal moth Sitotroga cerealella O.), used as a nutritional substrate, is due to the fact that they are subjected to sterilization by using infrared rays, which have physical properties to penetrate under the chorion of the eggs, acting thermally on the embryo, as a result, further development of the larvae ceases, at the same time the sterilized eggs retain their nutritional qualities necessary for the development of the entomophage Trichogramma evanescens W.

Sterilizarea ouălor de insecte-gazdă are loc în felul următor: oule selectate cu vârsta de până la 3 zile păstrate la temperatura de 4…7°С şi umiditatea relativă a aerului de 75…85%, se amplasează uniform pe fundul unui vas într-un singur strat şi se expun sub sursa de lumină cu raze infraroşii cu lungimea de undă de 750...1000 nm şi puterea de 250 W, fixată la o înălţime de 250...300 mm, pe o durată de 4...5 minute, perioadă în care are loc acţiunea de sterilizare a ouălor, după aceasta ouăle se amplasează în condiţii optimale de dezvoltare a larvelor, la temperatura de 23...25°С şi umiditatea relativă a aerului de 75...85% pe o perioadă de 5...7 zile, timp în care eclozează larvele din ouăle fertile, care sunt separate, după aceasta se determină procentul de sterilizare a ouălor, care atinge nivelul de 80...85%. Ouăle sterile, păstrându-şi calităţile nutritive, sunt utilizate pentru creşterea în masă a entomofagului Trichogramma evanescens W. la temperatura de 23…25°C şi umiditatea relativă a aerului de 75…85%. Ouăle sterile pot fi păstrate un timp îndelungat şi utilizate după necesitate. Sterilization of host insect eggs takes place as follows: selected eggs up to 3 days old, kept at a temperature of 4...7°С and a relative air humidity of 75...85%, are placed evenly on the bottom of a vessel in a single layer and exposed to an infrared light source with a wavelength of 750...1000 nm and a power of 250 W, fixed at a height of 250...300 mm, for a period of 4...5 minutes, during which the egg sterilization action takes place, after which the eggs are placed in optimal conditions for larval development, at a temperature of 23...25°С and a relative air humidity of 75...85% for a period of 5...7 days, during which the larvae hatch from the fertile eggs, which are separated, after which the percentage of egg sterilization is determined, which reaches level of 80...85%. Sterile eggs, while retaining their nutritional qualities, are used for mass rearing of the entomophagous Trichogramma evanescens W. at a temperature of 23...25°C and a relative air humidity of 75...85%. Sterile eggs can be stored for a long time and used as needed.

Rezultatul tehnic obţinut se datorează faptului că procedeul propus asigură sterilizarea ouălor insectelor-gazdă (molia cerealelor - Sitotroga cerealella O.) cu un randament de 80...85%, totodată păstrând calităţile nutritive ale ouălor utilizate în calitate de gazdă la creşterea în masă a entomofagului Trichogramma evanescens W. Procedeul propus, spre deosebire de procedeele cunoscute, este uşor de realizat, nu necesită operator special, nu acţionează agresiv asupra materialului biologic sau a personalului de lucru, prin urmare se referă la tehnologiile ecologic pure, în acelaşi timp are un consum redus de energie. The technical result obtained is due to the fact that the proposed process ensures the sterilization of host insect eggs (cereal moth - Sitotroga cerealella O.) with a yield of 80...85%, while preserving the nutritional qualities of the eggs used as a host for the mass growth of the entomophagous Trichogramma evanescens W. The proposed process, unlike known processes, is easy to perform, does not require a special operator, does not act aggressively on biological material or work personnel, therefore it refers to ecologically pure technologies, at the same time it has a reduced energy consumption.

1. MD 1958 G2 2002.07.31 1. MD 1958 G2 2002.07.31

Claims (1)

Procedeu de înmulţire în masă a entomofagului Trichogramma evanescens W., care prevede sterilizarea ouălor de molie cerealieră Sitotroga cerealella O. prin tratarea acestora în decurs de 4...5 min cu raze infraroşii cu lungimea de undă de 750...1000 nm de la o sursă cu puterea de 250 W, situată la distanţa de 250...300 mm de la ouăle amplasate într-un strat, menţinerea lor ulterioară la temperatura de 23…25°C şi umiditatea relativă a aerului de 75…85% în decurs de 5…7 zile, separarea ouălor sterile şi înmulţirea entomofagului cu utilizarea acestora.Process for mass propagation of the entomophage Trichogramma evanescens W., which provides for the sterilization of the eggs of the grain moth Sitotroga cerealella O. by treating them within 4...5 min with infrared rays with a wavelength of 750...1000 nm from a source with a power of 250 W, located at a distance of 250...300 mm from the eggs placed in a layer, their subsequent maintenance at a temperature of 23...25°C and a relative air humidity of 75...85% within 5...7 days, separation of the sterile eggs and propagation of the entomophage using them.
MDS20150109A 2015-08-05 2015-08-05 Process for mass rearing of entomophage Trichogramma evanescens W MD1003Z (en)

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Publication number Priority date Publication date Assignee Title
MD1212Z (en) * 2017-05-24 2018-07-31 Институт Генетики, Физиологии И Защиты Растений Академии Наук Молдовы Process for rearing Trichogramma spp. entomophage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD300G2 (en) * 1995-03-22 1996-01-31 Institutul De Protectie Biologica A Plantelor Al Academiei De Stiinte A Republicii Moldova Method of obtaining of starting culture trichogramme Trichogramma evanescens is
MD301G2 (en) * 1995-03-22 1996-01-31 Institutul De Protectie Biologica A Plantelor Al Academiei De Stiinte A Republicii Moldova Method of manufacture in mass of trichogramme Trichogramma evanescens V
MD1958G2 (en) * 2001-05-30 2003-01-31 Institutul De Cercetari Pentru Protectia Plantelor Al Ministerului Agriculturii Si Industriei Prelucratoare Al Republicii Moldova Process for mass production of the Trichogramma evanescens W. trichogramma (variants)
MD1974G2 (en) * 2001-05-30 2003-02-28 Institutul De Cercetari Pentru Protectia Plantelor Al Ministerului Agriculturii Si Industriei Prelucratoare Al Republicii Moldova Process for Trichogramma sp. entomophagous multiplication
UA83537C2 (en) * 2006-08-21 2008-07-25 Институт Птицеводства Украинской Академии Аграрных Наук Method for growing and keeping poultry in closed premises and unit for carrying out thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD300G2 (en) * 1995-03-22 1996-01-31 Institutul De Protectie Biologica A Plantelor Al Academiei De Stiinte A Republicii Moldova Method of obtaining of starting culture trichogramme Trichogramma evanescens is
MD301G2 (en) * 1995-03-22 1996-01-31 Institutul De Protectie Biologica A Plantelor Al Academiei De Stiinte A Republicii Moldova Method of manufacture in mass of trichogramme Trichogramma evanescens V
MD1958G2 (en) * 2001-05-30 2003-01-31 Institutul De Cercetari Pentru Protectia Plantelor Al Ministerului Agriculturii Si Industriei Prelucratoare Al Republicii Moldova Process for mass production of the Trichogramma evanescens W. trichogramma (variants)
MD1974G2 (en) * 2001-05-30 2003-02-28 Institutul De Cercetari Pentru Protectia Plantelor Al Ministerului Agriculturii Si Industriei Prelucratoare Al Republicii Moldova Process for Trichogramma sp. entomophagous multiplication
UA83537C2 (en) * 2006-08-21 2008-07-25 Институт Птицеводства Украинской Академии Аграрных Наук Method for growing and keeping poultry in closed premises and unit for carrying out thereof

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