CN102715155A - Artificially synthesized phyllocnistis citrella stainton gyplure - Google Patents

Abstract

The invention discloses an artificially synthesized phyllocnistis citrella stainton gyplure. The gyplure is prepared by the following steps: mixing cis7 cis11-hexadecadienal, cis7 cis11 trans13- hexadecatrienal, cis7-hexedecanal and ethyl acetate in proportion by weight parts of 30:(1-30):(0.1-20):(0.1-20); adding 0.1 to 1 weight percent of vitamin E, TBHQ (tert-butyl hydroquinone), BHT (butylated hydroxytoluene) or BHA (butylated hydroxyanisole) as an antioxidant; and adding 0.1 to 1 weight percent of benzophenone, benzotriazole or hindered amine and mixture as an optical stabilizer. The artificially synthesized phyllocnistis citrella stainton gyplure has the following advantages: phyllocnistis citrella stainton diseases can be prevented and monitored, the trapping effect can be intensified and cost can be reduced, industrial efficiency improvement and orchard worker income increase can be facilitated, orange pesticide residue does not exist, the environment is not polluted, ecological balance is not destroyed, and sustainable development of orange industry is facilitated.

Description

A kind of phyllocnistis citrella stainton gyplure of synthetic

Technical field

The invention discloses a kind of insect sex attractant, relate in particular to a kind of phyllocnistis citrella stainton gyplure of synthetic.

Background technology

Citrus leaf-miner (Phyllocnistis citrella stainton) belongs to Lepidoptera, leaf lyonetid section; This worm can form irregular hollow tunnel on the surface of tender leaf, the tender tip after getting food; Therefore call drawing worm, scrawly handwriting, scratch worm, and on the tender shoots tender leaf that only produces at citrus of the ovum of this worm, and can be near leaf margin leaf roll be risen and surround health and pupate; Pass the winter on the tip, the winter tip or the autumn growth in the late fall of citrus with larva and pupa, the autumn growth rate of damage reaches 100%.Owing to citrus tender leaf, the tender tip cause a large amount of wounds after being eaten into food, often bring out the generation of citrus ulcer simultaneously, the blade of rolling provides the good place of passing the winter for again evil mite, armored scale, mealybug and tortrix moth etc.; Cause multiple insect pest to spread unchecked; And the citrus leaf-miner reproduction speed is fast, generation overlap, multiple worm attitude and deposit, and causes the control difficulty, influences citrus production greatly; Cause serious economy loss to the orchard worker; Be one of main oranges and tangerines insect in a plurality of countries and regions, domestic oranges and tangerines producing region all is injured, and it is the most serious to be injured on the south the Changjiang river.Tradition control citrus leaf-miner mainly adopts chemical pesticide to prevent and treat; But along with the abuse of chemical pesticide, caused the citrus leaf-miner pesticide resistance to strengthen, actual control efficiency is unsatisfactory; And can cause the residual problems affect food security of citrus farming; Also can pollute environment, and protection and to utilize the natural enemy of citrus leaf-miner to prevent and treat be the approach of economy safety, but because the abuse of chemical pesticide has destroyed the balance of natural ecosystems; Citrus leaf-miner natural enemy quantity is reduced, utilize natural enemy to prevent and treat and face difficulty.In recent years, the green Prevention Technique of utilizing the synthetic insect sex pheromone to disturb the mating of male and female worm to breed the offspring becomes main flow gradually, adopts the research of synthetic citrus leaf-miner sex pheromone control citrus leaf-miner also to obtain related developments both at home and abroad.Research shows that the female worm of citrus leaf-miner can the release property pheromones lure male worm trend, mating, lay eggs, and just can effectively control insect population quantity, minimizing insect pest if cut off this approach of breeding.U.S. scientist Analysis and Identification the earliest goes out the active ingredient of citrus leaf-miner sex pheromone; Leal etc. (2006) confirm along 7 along 11 anti-13-16 carbon three olefine aldehydrs, along 7 suitable 11-hexadecadienoic aldehydes with along after the mixed of 7-hexadecenal with 30:10:1; Brazilian citrus leaf-miner population is had attractive activity, and Moreira etc. (2006) study at Fla. in (2006) such as California, USA, Stelinski and Rogers (2008) and Lapointe and have proved along 7 along the 11-hexadecadienoic aldehydes local citrus leaf-miner population to be had attractive activity along 11 anti-13-16 carbon three olefine aldehydrs, suitable 7.In Japan, Mafi et al. (2005) confirms to have only suitable 7 suitable 11-hexadecadienoic aldehydes that local citrus leaf-miner male worm is had attractive activity.Domestic; Jiang Yaozhi etc. (2008) introduce to comprise along 7 from the U.S. and carry out application study along 11 anti-13-16 carbon three olefine aldehydrs, the suitable 7 citrus leaf-miner gyplures along the 11-hexadecadienoic aldehydes, show that this gyplure has significant attractive activity to the citrus leaf-miner male worm in Guangzhou, Shenzhen and area, Xinyu, Jiangxi.Qian Jiebing etc. (2009) carry out field trial in Ningbo of Zhejiang; The result shows that suitable 7 suitable 11 anti-13-16 carbon three olefine aldehydrs of single component just can show stronger attracting action to the citrus leaf-miner male worm; And single component does not have attractive activity along 7 along the 11-hexadecadienoic aldehyde; Along 7 along 11 anti-13-16 carbon three olefine aldehydrs with lure worm amount the highest at mass ratio during for 30:1 along the binary mixture of 11-hexadecadienoic aldehydes along 7; And at mass ratio remarkable synergistic effect being arranged along the 11-hexadecadienoic aldehydes, along the ternary mixture of 7-hexadecenal along 11 anti-13-16 carbon three olefine aldehydrs, along 7 during for 100:10:3 along 7, dosage and trapping activity test result show that also each lures core to comprise 1 milligram the strongest along 11 anti-13-16 carbon three olefine aldehydr attracting actions along 7.The impartial invention disclosed patent of Zhejiang Du Yong " lure the sex pheromone composition of citrus leaf-miner and lure core " (application number 201010257162.5) point out by along 7 along 11 anti-13-16 carbon three olefine aldehydrs, along 7 along the 11-hexadecadienoic aldehydes, along the 7-hexadecenal according to 1～100: 0～100: 1～10 mass ratio mixes the sex pheromone of forming and lures core; Each lures in the dosage range of core 40 microgram to 1333 micrograms all effective, but serves as that trapping is best with 400 microgram accumulated doses.Yet; In fact since the citrus leaf-miner population in country variant and area there are differences, along 7 along 11 anti-13-16 carbon three olefine aldehydrs, along 7 along the 11-hexadecadienoic aldehydes, whether all have attractive activity also to need further further investigation to the citrus leaf-miner population of different geographic regions along the mixture of 7-hexadecenal.Fujian is one of major production areas of citrus; The harm of citrus leaf-miner is more serious; Large-scale promotion adopts gyplure control citrus leaf-miner in recent years; But the discovery employing is unsatisfactory by the gyplure control citrus leaf-miner actual effect that mixes along 7 suitable 11 anti-13-16 carbon three olefine aldehydrs, suitable 7 suitable 11-hexadecadienoic aldehydes, suitable 7-hexadecenal when using in the field, needs badly prior art is improved.

Summary of the invention

The phyllocnistis citrella stainton gyplure that the purpose of this invention is to provide a kind of synthetic when improving the phyllocnistis citrella stainton attractive activity, can reduce the gyplure consumption, promptly practices thrift cost reinforced effects the time.

For solving the problems of the technologies described above; The present invention realizes through following technical scheme: the main component that employing suitable 7 is lured along 11-hexadecadienoic aldehydes, suitable 7 suitable 11 anti-13-16 carbon three olefine aldehydrs, suitable 7-hexadecenal conduct; Add ethyl acetate as synergist, specifically be with suitable 7 suitable 11-hexadecadienoic aldehydes, along 7 suitable 11 anti-13-16 carbon three olefine aldehydrs, mix according to parts by weight ratio 30:1～30:0.1～20:0.1～20 along 7-hexadecenal, ethyl acetate.Be illustrated in along 7 along the 11-hexadecadienoic aldehyde, along 7 suitable 11 anti-13-16 carbon three olefine aldehydrs, along the ethyl acetate that adds doses in the mixture of 7-hexadecenal through field experiment; Compare the mixture of the same prescription that does not add ethyl acetate; On average lure phyllocnistis citrella stainton quantity will exceed more than 50%, can strengthen attractant effect greatly.Preferably; Add parts by weight again and be 0.1～1% vitamin E, TBHQ, BHT or BHA as antioxidant; Add parts by weight and be 0.1～1% benzophenone class, benzotriazole or hindered amines and composite dose as light stabilizer; Attractive activity that can long period retentivity lure prolongs and lures valid expiration date.

Good effect of the present invention is: be applied to the control of citrus leaf-miner damage by disease and insect and observe and predict, improve the attractant effect of gyplure to phyllocnistis citrella stainton greatly, can reduce the gyplure consumption simultaneously; Practice thrift cost when promptly strengthening attractant effect again; Help industry synergy, the orchard worker increases income, and can not have the residual problem of citrus farming, and is free from environmental pollution; Do not destroy the ecological balance, help promoting the sustainable development of citrus industry.

Embodiment

For the ease of understanding the present invention, the present invention is further set forth explanation below in conjunction with specific embodiment.Its effect is understood that it is to further concrete elaboration the of the present invention, and is not that the present invention is constituted any type of restriction.

To mix according to parts by weight ratio 30:1～30:0.1～20:0.1～20 along 11 anti-13-16 carbon three olefine aldehydrs, suitable 7-hexadecenal, ethyl acetate along 11-hexadecadienoic aldehyde, suitable 7 along 7 earlier; Table 1 has provided the prescription of the concrete parts by weight ratio of main component; Add parts by weight again and be 0.3% vitamin E as antioxidant; Add parts by weight and be 0.3% benzophenone class as light stabilizer, promptly make the phyllocnistis citrella stainton gyplure of a kind of synthetic of the present invention.Get doses and pack in the slow-released carrier, be used with trapper, can trap and kill phyllocnistis citrella stainton, table 1 gives the actual trap effect of the prescription of concrete parts by weight ratio.

Table 1

Can find out by table 1; Embodiment 1-6 all has attractant effect to phyllocnistis citrella stainton; Wherein the attractant effect of embodiment 1, embodiment 3, embodiment 5 is better, and the mixture attractant effect of comparing the same prescription that does not add ethyl acetate on average exceeds 57.03%, is applied to the control of citrus leaf-miner damage by disease and insect and observes and predicts; Can reach better attractant effect with the dosage of luring of less amount, reduce the control cost.

Claims (2)

1. the phyllocnistis citrella stainton gyplure of a synthetic is characterized in that: by mixing according to parts by weight ratio 30:1～30:0.1～20:0.1～20 and form along 11 anti-13-16 carbon three olefine aldehydrs, suitable 7-hexadecenal, ethyl acetate along 11-hexadecadienoic aldehyde, suitable 7 along 7.

2. the phyllocnistis citrella stainton gyplure of synthetic according to claim 1; Its characteristic also be to add parts by weight be 0.1～1% vitamin E, TBHQ, BHT or BHA as antioxidant, add parts by weight and be 0.1～1% benzophenone class, benzotriazole or hindered amines and composite dose as light stabilizer.