What to cause the reason with orange rampant red spider to have in last few years? How from solve th

Orange is our country south advocate the fruiter variety that grow, orange red spider is one of main insect pest on orange production, in recent years, because use chemical agriculture chemical in great quantities,partial orange produces a division, cause orange red spider to erupt, to orange production brings the loss of different level. The rain that waited for a place as a result of Hunan, Jiangxi, Fujian and Guangxi last year is more, winter of orchard of a lot of orange and spring have not enough time to undertake to orange garden clear garden manages, the air temperature of each district is answered gradually now lukewarm, red spider begins an activity, accordingly, spring prevents and cure this year red spider already no time to delay!

Orange red spider: Belong to insect of division of mite of spider form key link, tick, mite of complete claw of formal name orange, red spider of place tumour skin. Orange red spider is to be one of main injurious insects that kill Yun Xiangke fruit tree, expression to produce algebra much, medicaments effects a radical cure hard, deadwood, fallen leaves is caused after plant fall victim, serious Shi Youguo falls off, affect orange crop directly.

Orange red spider produces the law: Orange red spider with egg or seam in orange leaf the reverse side or vimineous bud into mite in live through the winter, began mobile change every year to move to go up to Chun Sao in March harm, development and progenitive and appropriate temperature 30 ℃ of 20 ～ , the most comfortable temperature 25 ℃ , can produce 20 generation of 12 ～ 1 year, one year 2 produce fastigium, namely spring and autumn, the 1st produces fastigium is to be in 3, in May, to kill Chun Sao; The 2nd produces fastigium to be in 8, will be in October kill Qiu Sao, have hasten pale green quality, after new tip grows, on Laoxie kill mite to be transferred to new tip. Air temperature prep above 35 ℃ or under 12 ℃ when, bug decreases only quickly.

Cause the cause with orange rampant red spider

Because fruit grower uses drug undeserved be less than with technology of prevention and cure, often bring about red spider again rampant, to orange production brings serious effect.

(1) to natural enemy kill and wound

Natural enemy of orange red spider basically has the ladybug that feed mite, prey between mite, grass small black spider, the experiment considers to make clear, use tall poisonous agriculture chemical for years, have quite great power to these natural enemy.

(2) to pesticide generation fights a gender

Repeat for years in great quantities use same kind of acaricide, bring about kill mite to produce extremely strong resistance to the action of a drug to drug. According to determining, orange red spider is clever to Da mite fought a gender to already raised 25 times, to organic stannum, organic sulfur kind of acaricide fight what the gender also had different rate to rise.

(3) partial pesticide has stimulative effect to red spider breed

According to investigation, use draft Dalmatian chrysanthemum ester kind pesticide fast destroy kill Ding Hedi to kill when waiting for pest of orange of prevention and cure, orange red spider often appears leap phenomenon. Main show increases for red spider surviving rate, lay eggs the quantity increases, egg hatch rate rises, can amount to 10 ％ ～ commonly 25 ％ , cause jump over much phenomenon with medical red spider more.

(4) negligence winter clear garden

After fruit grower of a lot of orange picks orange now, loose the management to orange orchard, peasant association of basically very few fruit is in winter perhaps has all-around clear garden to orange garden when beginning of spring, come to those who reduce plant diseases and insect pests the 2nd year produce rate with this. Did not discover the bug egg of red spider, larva and imago in face of orange lamina positive and negative.

Orange red spider is prevented dominate program

The prevention and cure of red spider should consider to feel lukewarm gender, fight gender, security and natural enemy protection. Accordingly, on the combination that use drug, usable biology pesticide kills red spider imago, cooperate low poisonous chemical agriculture chemical to kill bug egg, exert both resultant force, can prevent and cure at the same time the 4 bug condition of red spider. Already Mu Jian bitter ginseng is alkaline + garlic is oily + low pesticide of degree of chemistry of the egg that kill insect, specific as follows:

1, use product

How does Mu Jie join painstakingly alkaline: Have gastric poison, touch kill and refus feeds action, the cutin of can effective deliquescent pest reachs waxiness layer, added the auxiliary of composition of Chinese herbal medicine among them, can make drug enters bug system quickly, paralytic pest central nervous, then makes bug system protein caky, block stoma of dead bug body up, make pest strangle, all have the effect to red spider, scale insect, thrips.

Garlic oil: Sulfur aether compound, odour is special (garlic flavour) , have to red spider hasten avoids and touch reduce effect, have to fungus, bacterium at the same time exterminate action directly, the disease such as ill to ulcer, colophony disease has effect of prevention and cure.

2, remedial program: How is Mu Jie joined painstakingly 1000 times more alkaline + garlic is 1000 times oilier sparge 2, removed 7-10 day. But answer ester of hydrazine of benzene matching couplet or element of A dimension bacterium.

3, anniversary precaution

Anniversary plan can be installed with beautiful fruit of preparation of Chinese herbal medicine, chela adds up to voice face of blade fecund abundant element and flourishing of biology bacterium soil fertility replace chemical drug and cupreous preparation, prevent to all of plant diseases and insect pests regnant. (cupreous preparation has to female mite promote lay eggs the action that promotes young mite to grow)

Before ① Chun Saomeng sends: Garlic is 1000 times oilier + Mu Jian bitter ginseng is 1000 times more alkaline + second mite Zun / snail mite ester (kill egg acaricide) sparge

② fructification expand period: Garlic is 1000 times oilier + Mu Jian bitter ginseng is 1000 times more alkaline sparge

Before ③ Qiu Saomeng sends: Garlic is 1000 times oilier + Mu Jian bitter ginseng is 1000 times more alkaline sparge

④ by November at the beginning of December (velar before half month) with garlic oil 1000 times + Mujian is joined painstakingly 1000 times more alkaline sparge.

Expect the result: Anniversary uses drug but the happening that annual prevents the insect pest such as bug of carapace of red spider, phylloxera, thrips, Jie effectively; Cure uses drug, spring sparge of the first medicine is over, red spider of 2-3 Queen of heaven is attainable effective control, gush fills again after 7-10 medicine, can hold effect 1-2 month.

Note

1, Mujian is in crop of division of tree of plum, peach, apricot, grape, eggplant (like tomato, chili, potato) ban with!

2, high temperature weather 30 degrees of above, cannot answer distribute mineral oil, dust kind chemical pesticide gush is applied, lest cause young fruit medicine,kill.

3, escape florescence is used. Can be in budding before with liquid distilled from honeysuckle flowers or lotus leaves Bai Qian is used.

4, tender bud period escape is used, avoid to burn tender bud.

5, need to notice when gush medicine, cannot gush has been gotten wet, face of blade positive and negative needs gush to be applied, accomplish gush to apply wet and do not drip, liquid medicine grows in the retention period on blade, medical effect is better.