8results about How to "Improve feathering rate" patented technology

The invention discloses a biological selection device and selection method for the emergence of black soldier flies pupae, which relates to the field of insect breeding technology, including a pupae room, which is a dark room, and is provided with a breeding rack and a flying channel structure in the pupae room, and the breeding rack is provided with a plurality of pupae containing structures, the pupae containing structures are used to contain pupae, the lower end of the flying channel structure is provided with an entrance, the upper end of the flying channel structure is provided with an exit, and a light source is provided in the flying channel structure, and after the pupae are raised in the pupae containing structure and emerge into adults, they enter the flying channel structure for screening. The invention can significantly improve the emergence rate of black soldier flies pupae, and select relatively strong and flexible individuals in batches, and has the advantages of large-scale, high emergence rate, strong selectivity, etc., and can solve the problems of uneven seed insect quality and low egg-laying rate in the large-scale breeding process of black soldier flies.

The invention relates to a single-head breeding method of oryza vitessoides. The method comprises the following steps: (1) collecting and disinfecting eggs; (2) hatching eggs; (3) larva feeding: after larva incubation, each larva is independently transferred into a larva feeding cup, and a filter paper block dripped with sterile water is placed in the larva feeding cup; the method comprises the following steps: taking fresh picked artocarpus plant tender leaves as foodstuff, and feeding the larvae until the larvae are mature and enter a pupal stage; (4) feeding mature larvae: when the larvae are about to pupa, putting foodstuff and filter paper as media for self-made pupa chambers, dropwise adding sterile water into the filter paper for moisturizing, and after the mature larvae are completely pupated, removing the foodstuff; (5) treating pupae; (6) adult feeding and egg laying: after eclosion of the adults, pairing and transferring the adults into an adult feeding and egg laying cup, and returning to the step (1). By adopting the breeding method disclosed by the invention, the heortia vitessoides population which is normal in growth and development and relatively high in survival rate, pupation rate and eclosion rate can be obtained.

The utility model discloses an artificial honeycomb suitable for throwing trichogramma eggs in dry farmland, which comprises a closed spherical container formed by mutually buckling an upper hemisphere shell and a lower hemisphere shell, and cylindrical cavity structures are arranged in the upper hemisphere shell and the lower hemisphere shell. The utility model relates to the technical field of biological prevention and control, semi-circular honeycombs are tightly connected together through buckle structures to form the spherical trichogramma honeycombs, the spherical trichogramma honeycombs are arranged in the cylindrical cavity structure, the spherical trichogramma honeycombs are arranged in the cylindrical cavity structure, and the spherical trichogramma honeycombs are arranged in the cylindrical cavity structure. The honeycomb is not separated in the transportation and throwing process, it is facilitated that internal bee eggs are smoothly thrown into a farmland, the ventilation holes are formed in the two ends of the cylindrical cavity structure, sufficient ventilation is provided for the internal bee eggs, air circulation is guaranteed, the water retaining bosses are arranged between the ventilation holes and the cylindrical cavity structure, direct contact between rainwater and the bee eggs can be reduced, and the service life of the honeycomb is prolonged. The survival rate of bee eggs is ensured.

The invention relates to the technical field of biological prevention and control of agricultural and forestry pests, in particular to an artificial breeding method of short-stalk long-tail encardia. The method comprises the following steps: by taking oak eggs as hosts for bee inoculation and a fructose aqueous solution as a sugar source, inoculating 3-day-old female bees which have reproductive memory and are copulated, and carrying out bee inoculation treatment twice; and breeding the tussah eggs on which the short-stalk long-tail bees parasitize, which are collected by the two-time bee inoculation treatment, so as to obtain the short-stalk long-tail bees. On the basis of reproductive memory and in combination with the biological characteristics of the short-peduncle long-tail bees, influence factors such as the most suitable mother bee day age, bee grafting proportion and time of the short-peduncle long-tail bees are determined, the phenomenon of low parasitic rate or over-parasitism caused by improper parasitic proportion or time is avoided, and the survival rate of the short-peduncle long-tail bees is improved. And therefore, the parasitism rate and eclosion rate of the short-stalk long-tailed encardia are improved.

The invention discloses a method for improving the eclosion rate of larvae or nymphs of macadamia nut juice-eating leaf insects, and belongs to the technical field of insect feeding. The invention discloses a method for improving eclosion rate of larvae or nymphs of macadamia nut juicy leaf insects, which comprises the following steps: covering the larvae or nymphs and newly-drawn tender shoots with a white nylon mesh bag with 200-300 meshes, and tightening the bag opening with a rope, so that the larvae or nymphs cannot escape. If the tender leaves are completely eaten or the tender shoot juice is completely sucked, larvae or nymphs need to be transferred to another newly-drawn tender shoot until the larvae pupate and eclosion, and adults are collected for research. By means of the method, the eclosion rate of larvae or nymphs can be increased to 80% or above.

The invention discloses a parasitic egg magnetization determination device and a parasitic egg magnetization determination method in a trichogramma artificial breeding process, and belongs to the field of trichogramma breeding devices. The objective of the invention is to solve the over-parasitism problem of trichogramma in the prior art. According to the method, after parasitized parasitic eggs are determined through a magnetization determination method, the parasitic eggs are separated from non-parasitized host eggs, the non-parasitized host eggs are repeatedly subjected to parasitized ovulation, and the parasitic eggs are cultured, so that the parasitized times of the host eggs are controlled, the over-parasitism proportion is reduced, and the over-parasitism problem is solved. And the body length, the uniformity, the eclosion rate, the service life and the like of trichogramma can be remarkably improved. And the device is used for performing parasitic measurement and is convenient for manual intervention of parasitic times, and the measurement method is high in reliability and efficiency and free of time delay.

The invention discloses a parasitic egg magnetization measuring device and a method for measuring the magnetization of parasitic eggs in the artificial breeding process of trichogrammatids, belonging to the field of trichogrammatid breeding devices. The purpose of the invention is to solve the existing problem of over-parasitism of trichogrammatids. After the parasitic eggs that have been parasitized are measured by the magnetization measuring method, the parasitic eggs are separated from the unparasitized host eggs, the unparasitized host eggs are repeatedly parasitized and ovulated, and the parasitic eggs are cultured, so as to realize the control of the number of times the host eggs are parasitized, reduce the over-parasitism ratio, and solve the occurrence of the over-parasitism problem. And it can significantly improve the body length and uniformity, eclosion rate, life span, etc. of trichogrammatids. In addition, the invention performs parasitism measurement through a device and facilitates manual intervention in the number of parasitism. The measurement method is highly reliable and efficient, and there is no time lag.

The utility model discloses a kind of trichogramma release device for corn ear stage pest control, it includes inside hollow release box, the middle part of release box is provided with the release passage of penetration, multiple placement cabins for placing trichogramma egg card are formed by spacing plate around release passage inside hollow release box, and placement cabin and release passage are communicated by through-hole;Different kinds of trichogramma egg card can be placed in the placement cabin of release box in the utility model, after trichogramma eclosion, fly out from release passage through through-hole, so that the eclosion of trichogramma is not influenced by external factors, so as to improve the eclosion rate and survival rate of trichogramma.