59 results about "German cockroach" patented technology

The invention relates to pyrethroid compounds, preparation methods and applications in sanitary insecticidal products thereof. The general formula for the compounds is (A), wherein R1 is methyl, methoxymethyl (-CH2OCH3) or H atoms, and R2 is -CF3 or -COOCH (CF3)2. Experiments prove that the compounds with the general formula (A) have excellent effects in preventing and controlling mosquitoes, flies, German cockroaches and other sanitary pests.

Disclosed are methods for affecting movement of an insect with respect to a specified location. One generates an electromagnetic field adjacent the location and exposes the insect to the field. Preferably the insect is a crawling insect such as a German cockroach, earwig, firebrat, or a silverfish. To attract insects, the strength of the field is not so high as to be repulsive to the insect, yet sufficiently strong as to be attractive. Such field generators are preferably incorporated into insect traps and insect bait stations.

The invention discloses poison bait for controlling German cockroach. The poison bait consists of the following ingredients in percentage by weight: 0.1 percent to 10 percent of pymetrozine, 0.1 percent to 10 percent of German cockroach excrement extracts and 80 percent to 99.8 percent of substrates, wherein the pymetrozine is used as insecticide, the German cockroach excrement extracts are used as attractants, the substrates are sugar food and/or protein food and/or edible oil, and stabilizing agents and preservatives can also be contained in the substrates. The poison bait can be used for efficiently trapping and killing the German cockroach and belongs to the ideal poison bait specially used for controlling the German cockroach.

The invention provides cockroach bait gel. The cockroach bait gel comprises a stomach toxicity component, a phagostimulant, a thickening stabilizer, a preservative, a moisturizer and water, wherein the phagostimulant contains cassava starch. Compared with the prior art, the cockroach bait gel has the following beneficial effects that 1, the cassava starch is first used as the phagostimulant to be applied to the cockroach bait gel, the palatability is good, the attractive force is strong, and the safety is strong; 2, the gel is stable and looks fine, and the cockroach bait gel is unlikely to go bad and free from radiating unpleasant smell; 3, the cockroach is attracted to take the cockroach bait gel initiatively, and the purpose for killing the cockroach through the stomach toxicity component can be realized; 4, the cockroach bait gel is particularly suitable for preventing German cockroach and has a good effect.

The invention discloses dsRNA and application thereof to German cockroach. DsRNA which targets a Tet2 gene of German cockroach is double-stranded DNA consisting of a nucleotide with a nucleotide sequence represented by SEQ ID No.7 and a nucleotide reversely complemented with a nucleotide represented by SEQ ID No.7. DsRNA is synthesized by virtue of an RNAi interference technique and is used for targeting a demethylated relevant gene Tet2 of DNA, and therefore, the development of ovaries of cockroaches is influenced, and the prevention and control of the cockroaches are realized based on the blockage or damage of the development of the ovaries and the formation of oothecae.

An insecticide for attracting and killing Groton bug contains dodecylchloropentacyclic decane powder or O, O-diethyl-O-3,5,6- trichloro-2-pyridyl) thionophate powder, cooked yolk powder, potato starch and other starch. Its advantages are high efficiency and high safety.

The invention discloses a metarhizium anisopliae transgenic strain as well as a preparation method and an application thereof. The strain is a recombinant engineering bacterium constructed by fusion of metarhizium anisopliae genes and exogenous Prla (subtilisin-like protease A) genes. The metarhizium anisopliae transgenic strain takes metarhizium anisopliae as the basis, takes Pgpd as a strong promoter, takes TTrpC as a terminator and takes Basta as a selection marker, a Prla overexpression box is constructed with a PCR fusion method, then a fungal protoplast is prepared, genetic engineering transformation is conducted with a CaCl2-PEG method, and the overexpression box is inserted in a metarhizium anisopliae gene group randomly for overexpression. The metarhizium anisopliae transgenic strain is good in German cockroach killing effect, higher in toxicity and capable of effectively controlling German cockroach populations in a short time.

The invention relates to a method for preparing cockroach insecticide tablets by Sichuan pepper essential oil. The method comprises the following steps: crushing Sichuan pepper by utilizing a crusher according to a ratio of 10ml to 15ml of a Sichuan pepper essential oil extract liquid, 400ml of absolute ethyl alcohol, 100ml of tween 80 and 100g to 150g of agar, adding distilled water to soak the crushed Sichuan pepper, and extracting the Sichuan pepper essential oil extract liquid for standby use in a vapor distilling method; uniformly mixing the absolute ethyl alcohol and tween 80, and then adding the Sichuan pepper essential oil extract liquid to obtain the Sichuan pepper essential oil insecticide slow-release preparation; adding the agar into the distilled water, heating and dissolving the agar, cooling the agar, and slowly adding the essential oil insecticide slow-release agent prepared in the step 2 into the agar solution, heating and stirring the mixed solution, uniformly mixing the mixed solution, and slowly pouring the mixed solution into a hollow cylindrical forming mold to prepare a cylindrical round bar; cutting the cylindrical round bar into tablets; and applying the glue on one side of each tablet to prepare the cockroach insecticide tablet. The method is simple in preparation process, low in cost and diversified in applicable environments, and the repellent rate of the prepared cockroach insecticide tablet for American cockroach and German cockroach can reach 88 to 100 percent.

The invention relates to an insect control drug with an aggregation function, and in particular relates to a German cockroach poison bait with an aggregation function. The German cockroach poison bait comprises the following components by weight percent: 0.05-5% of emamectin benzoate, 0.1-10% of German cockroach aggregation pheromone substitute, 0-1% of a preservative, 0-10% of a stabilizer and 85-99.6% of bait, wherein the German cockroach aggregation pheromone substitute is one or combination of more in acetic acid, isobutyric acid, n-hexylic acid, sorbic acid, L-ethyl lactate, lactic acid, toluene, benzoic acid, palmitic acid, oleic acid and linoleic acid; the bait comprises one or more in saccharide food, protein food and edible oil. The German cockroach poison bait is capable of efficiently trapping and killing German cockroaches, thus being an ideal poison bait specially used for controlling the German cockroaches.

The invention discloses a German cockroach feeding cage and a German cockroach breeding method, and relates to the technical field of insect breeding, wherein the breeding cage comprises a feeding cage main body, a feeding culture dish and a watering assembly; the feeding cage main body is further provided with one or more insect habitat boxes, and the main body of the feeding cage comprises a cage door, and an insect collecting cylinder channel is embedded in the cage door. The German cockroach breeding cage is suitable for large-scale breeding of German cockroaches in a laboratory, and the feeding and drinking is facilitated; the device can prevent the German cockroaches from escaping to a certain extent; the breeding method comprises the steps of work preparation-migration-watering-feeding-cleaning-trapping, thereby meeting the growth and development requirements of the German cockroaches, and achieving the large-scale feeding of the German cockroaches in a laboratory; the development period of the German cockroaches can be obviously shortened by optimizing the feeding conditions, the hatching rate of the egg sheaths is high, the survival rate is high, the insect body consistency is good, and the development is excellent.

The invention discloses a cockroach attractive toxicant. The cockroach attractive toxicant is prepared from, by weight, 1-2 parts of boric acid, 1-2 parts of cockroach pheromones, 2-4 parts of cassia bark, 3-5 parts of acrylic acid, 2-5 parts of lecithin, 6-10 parts of soybean oil, 10-20 parts of sucrose, 10-15 parts of nitrocellulose and 30-40 parts of flour. The cockroach attractive toxicant is reasonable in formula and low in cost; cockroach pheromones have a strong attraction effect on cockroaches, boric acid has multiple acting lethal targets in the cockroaches, and toxicant resistance is not prone to generation; according to the habit that the cockroaches eat one another, feces or corpses of intoxicated dead cockroaches are eaten by other cockroaches, a continuous intoxication lethal effect can be achieved, and the cockroaches can be killed thoroughly.

A German cockroach trap provides bait, humidity, and temperature to attract German cockroaches into entries, electrocutes the German cockroaches upon entry into the trap, and stores dead cockroaches below the entries. Electrode bands form a closed ring on an interior surface and contact with two of the rings immediately kills the German cockroach which drops into a receiving dock below. A center electrode band may include holes for entry into the trap. A water reservoir in the bottom of the trap is heated to generate humid vapor. Heaters in the top of the trap are controlled to maintain temperature and a fan in the top of the trap draws ambient air into the trap to create a humid vapor flow out through the entries. Bait trays contain material further attracting the German cockroaches.

The invention provides a pesticidal composite for preventing sanitary pests like mosquitoes, flies, Blattella germanica and the like. The pesticidal composite contains chlorantraniliprole which serves as pesticidal active ingredient and piperonyl butoxide or octacide 264 which serves as synergist, and the amount of the piperonyl butoxide or octacide 264 is 1-20 times that of the chlorantraniliprole by weight. The pesticidal composite can be prepared to be pest-repellent incense coils, electrothermal mosquito mats, electrothermal liquid mosquito repellent and pest aerosol to be used where mosquitoes, flies, Blattella germanica and the like haunt so as to achieve the effects of preventing and killing the pests.

The invention discloses a Cad96ca gene related to German cockroach epidermal development, dsRNA of the gene and a preparation method and an application thereof. The nucleotide sequence of the Cad96cagene is as shown in SEQ ID No. 1, and the dsRNA is a double-stranded RNA composed of a nucleotide sequence as shown in SEQ ID No. 2 and a nucleotide sequence reversely complementary with the nucleotide sequence as shown in SEQ ID No. 2. A RNAi interference technology is utilized, dsRNA is synthesized to target silence the epidermal development related gene Cad96ca to influence the ecdysis of cockroaches, the purpose of cockroach prevention and control is achieved on the basis of blocking or destroying the ecdysis of cockroaches, and a new molecular target is provided for pest prevention and control.

The invention relates to a biological pesticide insecticide field, and especially relates to a bait of a cockroach biological pesticide using avermectin and boric acid as main raw materials and consisting of avermectin, boric acid, cooked soybean powder, potassium sorbate, glycerol, vaseline, xanthan gum and sesame oil. The bait of the cockroach biological pesticide is obtained through crushing, sieving, stirring, dissolving and loading and is advantaged by high efficiency, low toxicity and low cost. The raw materials selected in the invention are all green environmental-friendly original reagents with no pollution. The product of the invention is advantaged by high efficiency and low toxicity, convenient in usage, low in price, less in amount, easy in getting the raw materials and obvious in pesticide effect on cockroaches including German cockroach. The two main raw materials of the product in the invention are avermectin and boric acid having a corresponding co-toxicity coefficient (CTC) of 166.384. The product of the invention is suitable for being used in places such as residences, office buildings, warehouses, hotels, etc.

The invention relates to a kind of hydroxycitronellal propionate applied in insect repellent agent and antifeedant, including hydroxycitronellal propionate used as repellent agent of cockroach and red flour beetle, and hydroxycitronellal propionate used as antifeedant of diamondback moth larva. The bioassay result shows that, the repellent activity of 20 mg/ml hydroxycitronellal propionate against male Blattella germanica is up to 62%, the repellent activity of 100 mg/ml hydroxycitronellal propionate against female Blattella germanica is up to 65%. In field experiments, the hydroxycitronellal propionate also shows good effective. The repellent activity of hydroxycitronellal propionate against red flour beetle is also high, at 8mg/ml, after 12, 24, 72 hours, the repellent rate is above 90%; the antifeedant activity of the compound against diamondback moth larva is high, at 10 mg/ml, after 24, 48, 72 hours, the antifeedant rate is 86%, 77%, 67% respectively.

The invention discloses a pyrethroid compound as well as a preparation method and an application thereof, and provides a preparation method of the pyrethroid compound 1-acetenyl-2-methyl-2-pentenyl-(trans-dextrorotation)-3-(2-chlorine-3,3,3-trifluoro-1-propenyl)-2, 2-dimethylcyclopropane carboxylic ester, and an application thereof in the aspect of preventing and treating sanitary insect pests. The compound is prepared from trans-dextrorotation-3-(2-chlorine-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropane carboxylic ester and 1-acetenyl-2-methyl-amylene-2-alcohol in an esterifying manner, is one of pyrethroids, and belongs to synthetic organic pesticides. The pyrethroid compound is simple in technique and easy to industrially popularize; the product is used for exterminating family health pests and mosquitoes, flies, german cockroach and the like, has efficient and low-toxicity effects, and is a new pesticide researched for preventing the sanitary insect pests from generating drug resistance on pyrethroid drugs.

A compound of the formula I

where R represents unsubstituted or substituted, alkyl, cycloalkyl, alkenyl, alkynyl, or aryl, and X represents

where R¹ and R² are each H or alkyl, is disclosed. Compounds of formula I are particularly useful as an attractant for cockroaches, namely, Blattella germanica. Synthesis of the compounds, methods of controlling cockroach populations, and of disrupting cockroach mating are also disclosed.

The invention discloses a method of using a pichia yeast expression system to produce German cockroach allergenic Blagarg protein, which includes: extracting total RNA (ribonucleic acid) from German cockroach tissues, reversely transcribing the total RNA into cDNA (complementary deoxyribonucleic acid), and obtaining coded genes of the German cockroach allergenic Blagarg by the PCR (polymerase chain reaction) method; cloning the coded genes to pGAPaA plasmids, and converting a yeast expression strain GS115 for expression; and purifying by affinity chromatography to obtain the German cockroach allergenic Blagarg protein. By the method using affinity chromatography, the problems in Blagarg allergen production are solved.

The invention provides a combined cockroach-killing bait, which relates to the technical field of insecticidal baits. The combined bait provided by the invention comprises a bait A and a bait B, wherein the bait A comprises the following components: a carrier, an insecticidal component, a humectant, water, saccharides, cockroach pheromone and an attractant additive A; and the bait agent B comprises the following components: the carrier, the insecticidal component, the humectant, water, grease, cockroach pheromone and an attracting additive B. The combined cockroach-killing bait disclosed by the invention plays a role in superposing and enhancing the attraction of American cockroaches and German cockroaches, and meanwhile, the food refusal effect of cockroaches is remarkably reduced.

The invention belongs to the field of pyrethroid compounds, and particularly relates to a methyl cloro chrysanthemic acid polyfluoro benzyl alcohol pyrethroid compound as well as a preparation methodand application thereof. The methyl cloro chrysanthemic acid polyfluoro benzyl alcohol pyrethroid compound is obtained by an esterification reaction of methyl cloro chrysanthemoyl chloride and polyfluoro benzyl alcohol in a solvent in the presence of an organic base. The compound provided by the methyl cloro chrysanthemic acid polyfluoro benzyl alcohol pyrethroid compound has very high killing activity on sanitary pests such as mosquitoes, housefly and german cockroaches; the methyl cloro chrysanthemic acid polyfluoro benzyl alcohol pyrethroid compound is easy to synthesize, low in productioncost and easy to industrialize, and the synthesis complexity is obviously reduced; in addition, due to the asymmetric structure of the chrysanthemic acid part and polyfluoro chrysanthemic acid alcohol, the problems of resistance and environmental residue of pests can be effectively reduced.

The invention discloses an active constituent for trapping German cockroach and a preparation method thereof. The active constituent comprises three mixtures with the same mass; the first mixture adopts strong active constituent, each constituent is 0.1 to 10 parts, and the chemical structure adopts homology mixture comprising adjacent carbonyl and hydroxyl structures; the second mixture adopts moderate active constituent, each constituent is 1 to 10 parts, and the chemical constituents adopt saturated volatile fatty acid, fatty alcohol and the mixture of esterifiable products of saturated volatile fatty acid and fatty alcohol; the third mixture adopts a synergistic effect constituent, each constituent is 0.01 to 0.1 part, and the third mixture adopts a mixture containing sulfur ether, sulfur alcohol and heterocyclic compound. The active constituent has the effect of efficient food odor trapping on German cockroach, and the trapping effect can be continued for 2 to 6 months.

The invention relates to a method for preparing a cockroach repellent tablet by extracting xanthoxylin with a carbon dioxide supercritical method. The cockroach repellent tablet is prepared from the following components: 10 to 15 ml of xanthoxylin extracting liquid, 300 to 400 ml of absolute alcohol, 80 to 100 ml of tween and 100 to 150 g of agar. The method comprises the steps of: crushing pepper by a crusher, sieving through a 200mesh sieve, and placing the crushed pepper into an extraction kettle for extraction to obtain the xanthoxylin extracting liquid for later use; mixing absolute alcohol and tween 80 uniformly, then adding the xanthoxylin extracting liquid to obtain the xanthoxylin dispersion liquid; adding the agar into distilled water, heating for dissolution, cooling, adding the xanthoxylin dispersion liquid prepared in step 2 into the prepared agar solution, mixing uniformly, then slowly pouring into a square mold, naturally cooling for solidification, and cutting to prepare tablets; and applying gum to one side of each tablet to prepare the cockroach repellent tablet. The method for preparing the cockroach repellent tablet by extracting xanthoxylin with the carbon dioxide supercritical method, disclosed by the invention, is simple in preparation process, low in cost, and suitable to various environments, and has the repellent rate reaching 88 to 100% to American cockroaches and German cockroaches.