A kind of thrips attractant based on tea plant volatilesTechnical field
The invention belongs to the technical field of insect is largely trapped by semiochemical, and in particular to one kind is waved based on tea treeThe thrips attractant of stimulating food.
Background technology
Thrips is the important pests of tea tree, and thrips then inhales the harm of tea tree tender leaf juice, aggrieved blade with adult or nymph fileBack tarnishes, and bronzing striped occurs, and foxiness, the food value of leaf is stiff to become fragile, the slightly gradual atrophy of tea, under tea yield and qualityDrop, causes greatly to lose.For this insect because 1 year occurs number generation, generation overlap is serious, causes to be difficult to prevent and treat.The worm sends out at presentBiological and ecological methods to prevent plant disease, pests, and erosion, which is controlled, relies primarily on chemical pesticide, but long-term a large amount of abuse chemical pesticides cause tea garden environment pollution, tea leaf quality to decline, agricultureA series of problems, such as residual exceeded, these problems have arrived the stage of necessary solution, have a strong impact on the economic and social of tea industryBenefit.Therefore, it is badly in need of green prevention and control technology in production.
In plant and insect relation, plant volatile is importantization of communication contact between plant-feed insect and host plantLearn signal, volatile materials search of food and spawning place of the plant-feed insect generally using host plant release;PhytovolatilizationThing generates highly important influence during the coevolution of plant and insect on insect lipids, and insect it is timely,Effectively observe and predict and its comprehensive regulation in play highly important effect, due to avoiding a large amount of uses of agricultural chemicals, to the mankind andEnvironmental security, develop the agent of plant source attracting pests using host's volatile matter has turned into the important research direction of pests control.Have speciallyFamily is expected：Population density using semiochemical regulation and control insect is one of important means of 21st century control of insect.
The content of the invention
It is an object of the invention to provide a kind of tea tree thrips attractant based on tea plant volatiles, with tea plant volatiles composition α-Farnesene;Cis- jasmone presses 8.5:9.2 part by weight mix.The attractant using artificial synthesized volatile matter as primary raw material,It is obvious to the attractant effect of tea tree thrips, there is use and pollution-free.
To achieve the above object, the present invention adopts the following technical scheme that：
Realized by following steps：
（1）Attractant configures
A kind of thrips attractant based on tea plant volatiles, comprising α-farnesene, cis- jasmone, by α-farnesene and cis-Two kinds of active components of jasmone are each configured to 8.5 × 10-6-8.5×10-2Mg/ml and 9.2 × 10-6-9.2×10-2Mg/ml is denseDegree, by 8.5:9.2 part by weight prepare resulting mixture as tea tree thrips attractant,
（2）Slow-released carrier prepares
Slow-released carrier is sleeve formula silica gel slow-released carrier.The carrier a height of 20 mm, internal diameter 0.5mm.Sleeve formula silica gel is released into loadBody soaks 2-5 days in ethanol, finally dries under field conditions (factors), standby.To be 17-18mg, 170-180ug and 1.7-1.8ug attractants add slow-released carrier.It is standby as sustained release agent, refrigeration to add atoleine 100ul.
The advantage of the invention is that：The tea tree thrips attractant that the present invention is prepared using tea tree stimulating food, compatibility is reasonable, canTea tree thrips effectively is trapped, there is use and pollution-free, so as to reach the purpose for concentrating preventing and treating.Therefore with wideWealthy industrialization prospect.
Embodiment
Embodiment 1
In May, 2015 uses the content of attractant that tea tree thrips attractant lure is made for 17.7mg in Fuan City, Fujian Province,Each material addition such as table 1.Field attractant is used cooperatively with yellow haftplatte, investigates the thrips quantity on haftplatte.Processing with it is rightField random alignment is impinged upon, each handles 6 repetitions.It can be seen that from the survey data in table 1, attractant can improve mythimna separata HuangFor plate to 12 times or so of the trapping capability of thrips, statistical analysis shows that the two has pole significant difference.Illustrate our attractant toolThere is obvious attractant effect.
The attractant of table 1 is in tea place to the attractant effect of tea tree thrips
Embodiment 2
Use the content of attractant that tea tree thrips attractant lure, each content of material such as table 2 is made for 177ug.In fieldAttractant is used cooperatively with yellow haftplatte, investigates the quantity of the thrips on haftplatte.Handle and to impinging upon field random alignment, eachHandle 5 repetitions.It can be seen that from the survey data in table 2, attractant can improve trapping capability 2.3 of the mythimna separata Huang plate to thripsTimes or so, statistical analysis shows that the two has significant difference.Illustrate that our attractant has obvious attractant effect.
The attractant of table 2 is in tea place to the attractant effect of tea tree thrips
Embodiment 3
Use the content of attractant that tea tree thrips attractant lure, each content of material such as table 3 is made for 0.177ug.In fieldBetween attractant be used cooperatively with yellow haftplatte, investigate haftplatte on thrips quantity.Handle and to impinging upon field random alignment, often6 repetitions of individual processing.It can be seen that from the survey data in table 3, attractant is remarkably improved trapping energy of the mythimna separata Huang plate to thripsPower.
The attractant of table 3 is in tea place to the attractant effect of tea tree thrips
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent withModification, it should all belong to the covering scope of the present invention.