Stored tobacco pests injury occurrence inspection box in tobacco storehouse and application thereofTechnical field:
The present invention relates to the maintenance of tobacco warehouse tobacco leaf and the Prevention Technique of stored tobacco pests, particularly a kind of stored tobacco pests injury occurrence inspection box in tobacco storehouse and application thereof.
Background technology:
Lasioderma serricorne is one of main stored tobacco pests of China, in the most of area of China generation is arranged all.Stored tobacco pests has caused very big economic loss to tobacco every year, and annual tobacco enterprise has dropped into great amount of manpower and financial resources at the control stored tobacco pests, and control efficiency is unsatisfactory, and Gao Nianzhao (1995,1996) investigates report, and the rate of damage of tobacco leaf is generally 3-4%.Not only cause the tobacco leaf loss in weight, silk production rate to reduce after the stored tobacco pests harm, the more important thing is that tobacco leaf smoking quality variation, availability descend, economic loss is huge.
China's cigarette enterprise often adopts aluminum phosphide fumigation to the control of lasioderma serricorne at present, the quality of aluminum phosphide fumigation effect depends primarily on the concentration of the aluminum phosphide fumigation selection on opportunity, phosphine and keeps the stifling time, phosphine fumigation concentration and time better hold, but the selection on stifling opportunity, need comprehensive considering various effects, as environmental temperature, present developmental stage of lasioderma serricorne, population density or the like.And each is stifling once general annual spring of the most of enterprise of China, two seasons of autumn, and this stifling pattern has certain blindness, is unfavorable for the control of lasioderma serricorne and the maintenance management of tobacco leaf.Lasioderma serricorne is low instar larvae and lasioderma serricorne adult to the most responsive worm attitude of phosphine, therefore is chosen in lasioderma serricorne low instar larvae and lasioderma serricorne adult peak period fumigant insect killing, and effect is ideal.The growth of lasioderma serricorne and tobacco leaf warehouse environment conditional relationship are close, China is vast in territory, climatic environment varies, the rule that the stored grain insects of different regions are taken place respectively has its characteristics, therefore the correct pests occurrence rule of judging lasioderma serricorne, the present developmental stage of lasioderma serricorne is an important evidence of determining the aluminum phosphide fumigation choose opportunities.
Summary of the invention
Purpose of the present invention is difficult to judgement and a kind of stored tobacco pests injury occurrence inspection box in tobacco storehouse is provided specially at lasioderma serricorne developmental stage in the above-mentioned tobacco warehouse just, can grasp the developmental stage of lasioderma serricorne in the tobacco warehouse at any time by the application of this inspection box, the control of the first-class insect of tobacco is had great importance.
The objective of the invention is to be achieved through the following technical solutions: stored tobacco pests injury occurrence inspection box in tobacco storehouse of the present invention comprises the casing that has top cover, casing is separated into culturing room and observation ward by mesh screen, in observation ward, be provided with illuminator, tank wall is that transparent material is made around the observation ward, can be glass or pmma material, also can be the material that boxboard is done in other transparent being suitable for.
In the present invention, the illuminator that is provided with in the observation ward is the fluorescent tube that is arranged on place, four angles of observation ward;
The casing size is 500mm * 400mm * 700mm, and wherein culturing room accounts for 2/3 of whole box body, and the casing both sides are provided with fixed handle, and case lid is provided with fixedly snap close, sieves so that hold casing.
Cultivate different types of stored tobacco pests for adapting to, according to the size of stored tobacco pests individuality, can select the screen cloth in different apertures, the mesh screen aperture can be between 1-5mm.
Inspection box of the present invention is used for that tobacco warehouse is observed, each growth and development stage worm attitude of record lasioderma serricorne insect, grasps deinsectization opportunity in good time, and its application method is as follows:
A, put into a certain amount of tobacco leaf in culturing room, drop into the overwinter generation lasioderma serricorne, buckle removable top cover, observation ward puts into tobacco warehouse and cultivates up;
B, when needing observation lasioderma serricorne developmental stage,, stored tobacco pests is sieved into observation ward with observation ward down, opens illuminator, the quantity and the ratio of the various worm attitudes of observed and recorded can be judged the developmental stage of lasioderma serricorne;
C, after once observation finishes, will observation ward be positioned in the tobacco warehouse up and cultivate, be used for the observation of the lasioderma serricorne developmental stage of next period;
D, according to worm attitude growth and development state, judge the dispensing of tobacco warehouse, stifling opportunity, carry out desinsection in good time.
The present invention can repeatedly observe the developmental state of lasioderma serricorne, can not cause the propagation of lasioderma serricorne in the tobacco leaf warehouse.
Reasonable idea of the present invention, simple in structure, the developmental stage that can be widely used in the tobacco warehouse lasioderma serricorne is investigated, for the choose opportunities of instructing the tobacco warehouse fumigant insect killing has great importance.
Description of drawings
Fig. 1 is the structural representation of inspection box of the present invention.
Fig. 2 is the profile of Fig. 1.
Among the figure: 1. top cover, 2. switch, 3. fixed handle, 4. watch window, 5. fixedly snap close, 6. culturing room, 7. observation ward, 8. mesh screen, 9. fluorescent tube.
Embodiment
The present invention is further described below in conjunction with accompanying drawing and occupation mode, but does not limit the present invention.
As shown in Figure 1, 2, inspection box main body of the present invention is the frame timber structure, comprises culturing room (6) and observation ward (7) and illuminating lamp tube (9); Culturing room accounts for about 2/3 of whole box body; There is mesh screen (8) to separate between culturing room and the observation ward; Removable top cover (1), luminous lamp switch (2), fixed handle (3) and fixing snap close (5) are equipped with in culturing room; Observation ward (7) is glass window mouth (4) all around, at Si Jiaochu illuminator fluorescent tube (9) is installed.
This casing size is 500mm * 400mm * 700mm; The culturing room top is removable top cover (1), after the sheet cigarette is packed into, covers top cover, with fixedly snap close (5) is fixing; Mesh screen (8) aperture is 3mm in the main box, be convenient to lasioderma serricorne adult, larva and pupa and pass through, and the sheet cigarette can not pass through; Glass window is around observation ward, and big or small 200mm * 300mm, thickness of glass are 6mm; The illuminating lamp tube (9) of 4 30W is installed in the observation ward, is satisfied the light needs of observing the various worm attitude of lasioderma serricorne ratio, what control illuminating lamp tube (9) is contact pressure switch (2); There is fixed handle (3) the main box both sides, are convenient to sieve tobacco adult, larva and pupa in the off-chip cigarette.
The present invention is used for observing the method for tobacco warehouse lasioderma serricorne developmental stage to comprise the steps: when the spring temperature in every year begins greater than 10 ℃, in culturing room, put into a certain amount of tobacco leaf, drop into the overwinter generation lasioderma serricorne, buckle removable top cover, observation ward puts into tobacco warehouse and cultivates up.When needing observation lasioderma serricorne developmental stage, with observation ward down, both hands are held fixed handle, about sieve, stored tobacco pests is sieved into observation ward, plug in, open illuminator, the quantity and the ratio of the various worm attitudes of observed and recorded can be judged the developmental stage of lasioderma serricorne.After once observation finishes, will observation ward be positioned in the tobacco warehouse up and cultivate, be used for the observation of the lasioderma serricorne developmental stage of next period.