switching from zoloft to wellbutrin during pregnancy is zyban subsidised in new zealand genuine brand name cialis overseas pharmacy no prescription bactroban bactrim to buy in australia cephalexin non perscription countries terbinafine cream over the counter cost of generic zyprexa the online drugstore voltaren best place to buy clomid uk tetracycline tablets used for buy propranolol patch will generic aciphex available plendil daily use reviews order bactrim online no prescription aristocort woldwide shipping non prescription grifulvin v pharmacy suppliers of viagra super active in us depakote online price shortage of diovan buy topamax online usa vantin deluxe massage recliner indian pharmacy viagra professional i pill ampicillin website desyrel for sale australia glucotrol dosage information trileptal online coupon code acheter une livebox 2 midamor for men in usa ordering doxycycline 500mg buy liv 80 mg online recommended dose of benadryl for infants does levitra generic work no prescription amaryl sale lantus optiset solostar difference kamagra for sale in ireland over the counter medicine zestoretic tadacip pills sweat order tadacip in clozaril in canada price increase kamagra oral jelly aciphex over the counter equivalent prescription where to buy buspar with amex buy alli weight loss uk clinically xenical prix suisse healthy weight for 5 foot 9 man coumadin to buy in england coupons for zyrtec allergy medicine what is the drug cardizem prescribed for ditropan in croatia purchase etodolac buy topamax pills online pamelor generic 2013 drugs generic for diovan 160 good dose of gabapentin to get high online pharmacy uk diclofenac gel buy chloramphenicol online at canada pharmacy cheap genuine maxalt online side effects of thalidomide treating myeloma where can i buy alligator meat in los angeles viagra cialis cheaper ashwagandha pills where to seroquel cheap price quetiapine discount nizoral of canada lopid 600 isoniazid roche precio argentina how to use fresh brahmi leaves lukol brands india flagyl side effects in women best site to buy nitroglycerin how much can you sell viagra for lozol prescribing information viagra over the counter thailand prescription acai berry juice costco canada when is crestor going generic in canada cipro online next day delivery where can i buy cleocin in canada legal buy brand cialis online canada generic name for pletal minocin canada head office lipitor 40 mg price india do i need a prescription for differin acheter ventolin rosuvastatin suppliers overseas is strattera a class 2 drug gyne-lotrimin uses medication long term side effects of nizagara celexa by mail order us pharmacies online that sell alphagan is there a shortage of lopressor albuterol sulfate inhalation solution 0.5 msds purchase uroxatral cheap alfuzosin drugs what does protonix do for gi bleed side effects of nolvadex in men amoxil from canadian pharmacy canada meds sarasota fl where could i buy alesse without prescription buy lotrisone over counter prescription medrol steroid for dogs buy himcocid australia buy lasuna pills coreg cheap price what is ampicillin pills used for dapoxetine for sale acai berry quack medicine pilex spain oral prednisone shelf life apo-metformin 500mg buy indian generics online nizoral levothyroxine sodium msds indocin 50 mg cap google search what does depakote dr look like pharmacie cialis pas cher paris atarax over the counter drugs buy zyban next day generic exelon cost buy bactrim online usa blopress canada drug store mexican pharmacy no prescription mircette what drug category is sinequan what is styplon pills used for torsemide low dose birth control cozaar over the counter best place to order acivir pills in us trental pills drugstore pfizer samples direct chloramphenicol over counter donde comprar pulsera livestrong espan~a what does cardura do buy amaryl online levaquin generic canada acheter artane pas cher pharmacy online accutane cheap buy cheap voltaren pills prinivil shortage himalaya pilex side effects geriforte syrup reviews t3 thyroid medication effects how to obtain free samples of viagra prednisone 20 mg exelon patch side effects insomnia post cycle therapy beconase aq what does viagra sublingual vasodilan suppositories buy zithromax uk buy where to buy bentyl levothroid 100 mcg side effects levitra cost canadian strattera side effects in kids yasmin birth control online us buying himcocid from canada no prescription what kind of std does azithromycin treat nitrofurantoin uti pregnancy where cane i buy diflucan online levaquin results forum urispas delivery uk capoten tablets 25mg where to buy allegra d over the counter what is the generic for zovirax tadalis sx coupon code free or low cost aricept chloramphenicol 250 mg dosage do you need rx himplasia healthy bmi 15 year old male bystolic price walgreens abilify pictures of pills from canada cialis buy vytorin with no rx cialis value packs celebrex sales figures caverta discount ciplox tz dose what does lithium look like in its pure form vermox canadian source estrace generic reviews torsemide medicine where can i buy a tricorn hat indian evista mylan metformin 500 mg tablet kamagra oral jelly vs viagra low price retin-a 0,025 uk what is compazine tamoxifen mail order how many acai berry tablets to take comprar amaryl pela internet buy orlistat online no prescription us buy cabgolin singapore cipla share price safe synthroid no prescription glaxosmithkline ventolin hfa coupons lincocin spain walgreens mail order pharmacy florida how to buy allopurinol can you buy kytril over the counter in germany alesse drugs class low cost does alli work prescription drugs order generic voveran most reliable place to buy elavil online propranolol western australia lowest priced nizoral why has nizagara been discontinued canadian pharmacies online viagra motilium domperidone australia mentax dosage instructions kamagra pharmacies buy gasex with paypal zithromax dosage for syphilis methotrexate order by phone what is viagra soft tablet bromocriptine parlodel dosage do i need a prescription for ventolin australia is dipyridamole available over the counter alli diet supplement forum what does wellbutrin que es y para que sirve la clorfenamina buy lasix online from australia triamterene tablets uk proscar generic price zestril 40 mg tablet doxycycline used for acne treatment what is the correct dosage of grifulvin v non generic tadalis sx malegra fxt perth australia all types of drugs in a list cheap birth control online no prescription the best fertility pills for women how long does it take for diovan hct to work can meclizine hydrochloride get you high northwest drugstore canada phenergan ordering no prescription metformin and visalus cipla pharmaceutical indore seroquel coupons discounts do you need rx accutane singulair generic canada lov cost pamelor generic hydrochlorothiazide 12.5 mg avodart ordering no prescription hq canadian pharmacy reviews 24 hour media store discover card payment suprax shortage best price for real dostinex cheapest generic cialis indian what does a cialis tablet look like costco uk membership order etodolac online uk buy elocon lotion no prescription abana for men sale in uk cost of flovent at costco cheap singulair online cheapest prometrium tablets uk diakof without a prescription how long does levitra last 10mg viagra soft precio mexico skelaxin rxlist ketoconazole shampoo boots uk keppra reviews no prescription shuddha guggulu order metoclopramide online no presctiption cialis vente libre quebec forzest western australia tadacip online pharmacies with out prescription what all is benadryl used for buy accutane patch cheap combivent no prescription viagra canadian pharmacy fastest orlistat uk delivery estrofem 2 mg uk safe buy xalatan online citalopram buy online ireland health canada atorlip-10 phenergan sold over counter is generic betnovate available in usa can aldactone cause weight loss buying glycomet cleocin gel without a prescription desyrel drug oversea best generic cytoxan sites buying proscar terramycin online legally coumadin overnight baclofen medicine where can i buy primatene mist tablets where to get lozol how long does it take for cleocin ovules to work cyklokapron online cheap i pill aceon website mevacor express canada to buy alphagan in uk is generic yasmin effective buy ditropan xr without prescription geriforte prices cvs viagra to buy over the counter can you order arimidex to buy finpecia india venlor price can benadryl make you tired the next day safe brand viagra no prescription maxalt migraine headaches lexapro price without insurance genuine bactroban discount canadian pharmacy research grade diovan hyaluronic acid oral dose arthritis ordering flomax on line yasmin medication side-effects buyers of himcocid canada keftab tablets side effects sildenafil 100 accutane online pharmacy reliable cymbalta canada head office reputable online pharmacies uk levitra online purchase long time side effects citalopram trazodone 50mg capsules winthrop suicidal ideation accutane 40 mg to 60 mg clonidine pills pictures health canada propecia voltaren gel price canada no prescription pharmacy brand amoxil can you buy alligator meat uk dulcolax shortage maximum daily dose of ginseng doxycycline drugstore buy generic avodart with bonus signs of coumadin toxicity apo salvent metoclopramide pregnancy dosage cheap fertomid vente viagra au canada express care pharmacy az generic premarin 1.25 pastillas anticonceptivas yasmin donde comprar low dose amitriptyline pain blood buy cleocin gel for daily use buy bactrim online in usa what is estrace cream dosage is methotrexate available on line in canada levaquin generic launch can i get high off haldol buy sertraline online order glycomet online uk cardura bonus pills is dulcolax over the counter research grade prograf fml forte doctors online lexapro buy online no script generic dostinex overnite shipping pill rx health order cytotec products order bystolic cheap suprax coupon copay actos class action florida nolvadex tablets buy uk himcolin uk online diarex cost in canada fast flomax deleviery cialis professional rx vendita viagra generico in farmacia evecare from india buy diclofenac 80 mg online finax & popz salesforce a/s buy accutane online canada (pill box) cardizem order in the us online generic endep pharmacy buy alesse canada amoxicillin drops no script what does amitriptyline cure januvia generic substitute cafergot medication side effects which uk site to buy lisinopril aygestin delivery london diflucan for sale online what is the correct dosage of differin prilosec coupons is it legal to buy viagra in uk free viagra trial package comprar desyrel pela internet how to take eulexin mg buy fucidin from india can you buy septilin shipping estrace cream price online liquid remeron review best online pharmacy generic toradol can you drink alcohol with doxycycline tablets late ovulation on clomid 3-7 viagra free trial what is carafate suspension for dogs the pharmacy express legit aetna insurance mail order prescriptions doxazosin 10 mg cost generic for sarafem buy lexapro tablets online overnight erection packs 1 prescription prilosec discount price nexium indian pharmacy prevacid italiano what is meclizine generic for what is prazosin for cats cleocin suppositories buy online pharmacy no prescription needed bupron sr how much does walgreens pay cashiers buy rocaltrol pills online generic pills for trileptal cozaar cost comparison viagra soft tabs alcohol trental canada brand cialis pills online in the india generic names for erectile dysfunction drugs indian pharmacy omnicef low price rogaine 2 uk lasix gtt max dose american express canada costco card liquid crestor review reminyl drugstore.com buy zestoretic for daily use nitrofurantoin macro 100mg and alcohol cystone costco serophene tablets uses claritin loratadine pregnancy consolato italiano in cipro meclizine tablets us online buy actos cheap canadian pioglitazone ginseng by mail noroxin cost comparison accutane mg buy protonix side effects forum zyvox 600 mg tablets side effects lamisil generic mexico dostinex composition buy generic levitra cheap dosis correcta de cytotec para abortar buy avandamet online usa fast avapro deleviery floxin no script celebrex 200mg tablet over counter viagra walmart what is hydrea pills used for buy nizagara online from canada day of ovulation on clomid la pharmacie de platon pdf lithium overnight pharmacy antivert brands india buying citalopram online uk zovirax ointment manufacturer coupon prilosec 10 mg cost luvox uk buy i pill zestoretic website lisinopril drug information how long does accutane take to work yahoo allopurinol alcohol side effects buying abortion pills online safe medrol price norvasc annual sales styplon for sale australia viagra shops in london is endep a prescription drug vermox plus suspension plm beconase long term use cost of depo provera shot buy citalopram in uk without prescription order kamagra soft online uk dipyridamole 75 mg tablet zetia medicine online buy metronidazole tinidazole genuine apcalis sx 100mg health canada purinethol craigslist viagra vancouver purdue pharmacy online courses aurochem pharmaceuticals mumbai where to get finast pct where to claritin best generic blopress review what is the generic for flomax online floxin purchase avapro brand order maximum lasix dose per day orlistat side effects forum what is beconase aq pills used for arimidex on cycle pct buy reglan capsules generic actoplus met 17 850 diovan tablets 150 mg unisom pill shortage ampicillin shortage 2012 how to get a prescription for birth control pills online bactrim from europe birth control pills eldepryl abilify generic alternative micardis by mail weight loss injections 2012 what does trazodone do generic alesse online birth low cost isotretinoin for sale mirtazapine withdrawal insomnia zyprexa drugstore.com feldene buy on line what does generic clomid look like genuine lipitor 100mg diltiazem 60 mg tablets donde comprar diltiazem augmentin fast mexico cefixime for sale uk tamoxifen by mail relafen drug interactions valtrex generic over the counter cheap phenamax no prescription mail order generic crestor ginette-35 supplier in uk kamagra sale europe trimix course egypt pariet free shipping keflex antibiotic for std us pharmacy online proscar buy over the counter mobic online buy suhagra astrailia keppra suppliers overseas seroflo medicine online alli tablets back in stock can you drug order flonase online buy alphagan p india affordable buy tetracycline online price discounts pantoprazole sodium sesquihydrate usp monograph paxil 20 mg high effexor xr canada pharmacy oregon state fair concert tickets ordering aygestin order differin coupon suprax online overnight purchase dipyridamole on line in canada buy prescription drugs without a prescription western drug brand levitra where to buy revatio mg buy imitrex online reviews propranolol for migraines in children generic viagra fast delivery albendazole low price drugstore cialis daily viagra super active mg uk order furosemide no prescription mobic prices best generic viagra sites malaria lariam tablets side effects remeron class action lawsuit buy eurax astrailia cialis daily dose cost topamax reviews for seizures purchase children;s motrin can i buy betnovate cream over the counter can i buy synthroid online mail order xeloda side effects of combivent inh proprieta` del sale nero di cipro order va prescriptions online xenical diet pill buy vasodilan delivery uk ordering cialis india tadalafil non prescription celebrex nsaids cardizem discount medications


Apprenez à jardiner dans le respect de votre environnement, un site de la SNHF

Agapanthus 'Blue Heaven' (La plante du mois)

Jardine avec Bottine et ses amis. de 3 à 11 ans

Le puceron cendré du Poirier

 A première vue, tous les pucerons se ressemblent. C'est assez vrai pour ce qui est des dégâts qu'ils occasionnent, de préférence sur les jeunes organes des plantes, mais à y regarder de plus près, le monde des pucerons est très vaste.
Ces insectes appartiennent au vaste ordre des Hémoptères, riche en ennemis des cultures (pucerons, mais aussi punaises, cicadelles, cochenilles, tous piqueurs, suçeurs de sève et naturellement vecteurs de virus). Les pucerons sont "spécialisés" en matière écologique et nutritionnelle, chaque espèce  étant liée à une ou quelques espèces végétales qui les hébergent. Sous les climats à saison alternée, la période défavorable est souvent passée à l'état d'œuf sur un hôte souvent ligneux à partir duquel s'opèrent successivement une prolifération printanière par reproduction asexuée, puis une migration envahissante et sexuée sur une plante herbacée (pucerons diœciques). L'entrée de l'hiver voit la ponte d'un nouvel œuf d'hiver sur ligneux, bouclant le cycle.

Le puceron cendré du poirier alterne ainsi sa vie entre le poirier et le gaillet. Un autre puceron, commun sur le pommier, alterne avec les plantains, etc.

Si les attaques sont importantes, par exemple sur un jeune poirier en cours d'établissement, on peut appliquer un insecticide (se faire conseiller en jardinerie), à moins que des auxiliaires ne soient déjà présents (larves de coccinelles). Dans une mesure limitée et sur des arbres encore peu développés, on pourra tenter le traditionnel savon noir, d'une efficacité sans doute limitée, mais sans inconvénient pour l'environnement.

Daniel Lejeune
ex-directeur de l'écologie et de l'environnement
de la ville de Bourges

acheter les actes du colloque Quand les plantes se parlent