RMMCKC8X–. Fig. 14.-. Cross Section of Pineapple Fruit showing Two Infections of Black-eye Dull. lo, Dept. Pathology. H.S.P.A.
RMRCD9F3–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. Fhoto by] Fig. 44 Pink Disease of Cacao. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMMCK86R–. Fig. 31. Powdery mildew of the rose : («) Diseased leaves, (6) summer spores, (c) a perithecium, (d) ascus containing eight ascosporcs. of attackmg all leaves and young shoots. The first symptom of the disease is the sudden flagging of young, vigorous leaves, which readily fall off the stem if it is shaken gently. The shoot itseK droops and dies. Diseased leaves and shoots possess reddish-purple patches bearing a fungus growth. Gradually the disease develops until all the green tissues are destroyed.
RMME83BF–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . 5ig. 6. ®a§ 9*labcnforn beS 'IScijcnö. a (Sine 5tl)re mit JRabenförnern; b ein gefunbeö SBei^enforn jum a>ergleid)o mit ben bei gleidjer a^ergröBerung bargeftellten ^fitabc-- förnern c-e; le^tereS im ®urd;fd)uitt; f einige ber barin enthaltenen S{ld)entanien
RMRCD99H–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. DISEASES OF LIME AND OTHER CITRUS TREES 203 be necessary that a responsible person who understands the lines of action should direct it. The principles to be followed are set out in Chapter XI. As already indicated, when decay has invaded the base of the tree a permanent repair is no longer possible. The life of the remaining parts may, however, be much prolonged in many cases, if it is considered worth while, by cleaning and smoothing off the wood which remains sound, and coating it with a preserva- tive. As th
RMMCNEY6–. .x.750^ AJter N A Cobb After N. A. Cobb Fig. 16 Coconut Root Tig 17 Coconut Parfn- Fig. 18 Egg of Aphe- wiTH Nematodes chyma with Nematodes lenchus Cocophilus Reproduction proceeds vigorously on the growing plant and eggs and larvae in all stages are found mingled with the adults in the leaf-buds and around the young ear. With the drying out of the ripened plant the worms coil up in the upper- most nodes and within the glumes of the ear, and become dormant. In this condition they are returned to the soil, and await con- ditions suitable for the infection of the succeeding crop. Tylenchus rib
RMRCD96J–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. Fig. [Dcpt. Agri., Jamaica Panama Disease: Longitudinal Section of a Bulb and Base of the Stem. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMRCD914–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A.. Fig. 128 Melanconium Iliau. Stromata and Conidia From Bull, it, Dept. Pathology, H.S.Pji.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India
RMMCMF93–. Fig. ]u:5 Bacterial Boll Disease of Coi
RMMCNK70–. [From Duggar's Fungous Diseases of Plants Fig. 3 HypHAE (Rhizoctonia) Basidia and Spores of Corticium Vagum ceptible variety of plant, and optimum conditions of tempera- ture and moisture for infection and development. Under ordinary conditions most of the strains appear to be weak parasites. The hyphas freely penetrate soft tissues, and there is usually more or less external mycelium, though never a copious invest- ment as in the previous species. The description given by B. M. Duggar is as follows :
RMRCD908–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. DISEASE^ OF SUGAR CANE 319. Fig. 130 Cercospora vaginae From Wahber & Went. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMMCNHP8–. W'^. Fig. 8 ASCOMYCETES 1. Peziza. 2. Balansia trinitensis. 3. Scleroderris. 4. Perithecia and Conidia of an Erysiphe. 5. Nectria 6. Xylaria. 7. Hypoxylon. 8. Pseudovalsa. From Engler & Prantl. Nat. Pflanz. Perisporiacese (which include the fungi of "black blight") have mycelium which is superficial on the host plant, commonly on leaves, and have the asci enclosed in more or less spherical
RMRCJEJB–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. ^,.''^ :.-v â V'v-.v-;:->-0->^'<rf-', v^;V:- .'/. -. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Frank, Albert Bernhard, 1839-1900. Breslau E. Trewendt
RMRCD90J–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. Fig. 131 Ring Spot of Sugar-cane (Leptosphaeria Sacchari). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMRCJMHH–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Frank, Albert Bernhard, 1839-1900. Breslau E. Trewendt
RMRCJMFD–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. 13. Kapitel: Pjrenomycetps ^99. artigen oliobraunen Über^uge§ bie ßonibienform Sporidesmium putre- fa c i e 11 s Ftukel. 3 a c c a r b ü f)at beii ^ilj in Clasterosporiuin putrefacieiis Sacc. umbenannt; inbes ganj mit llnred)t, benn ber 9Rame Clasterosporiuin ift für biejenigen formen aufgefteUt morben, bereu Sporen nur £luerfc^eibe= radnbe be[i^en, inä^renb ber 3ftübeupil5 |et)r f^änfig aud) einige ööngömaube in ben Sporen befiel, luas aI[o ber 6f)arafter uon Sporidesmi
RMRCD961–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. DISEASES OF BANANA 249 subject to attacks on a large scale by a disease believed to be due to the infestation of the roots and rootstock with a nematode worm, Tylenchus musicola, recently described as a new species from Grenada material by N. A. Cobb. The bluggoe is probably identical with the moko of Trinidad, but the disease under description is quite distinct from the bacterial disease of the moko described by J. B. Rorer The closely related eelworm, Tylenchus. Fig. 95 Tylenchus Similis Afler N. A. Cobb simil
RMRCJEEY–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. 60 I. Slbfrfmitt: itfaiiff)eiteii ii. ^cfd)dbianiin., mcldn b. Stere uentrfad)! luerben Sluf Atragene. 9ln Cardamine. 3(ii Arabis. 9lii Viola. i?Uif Geraniiira. 9Iu Oxalis. Sriif Tilia. Sluf Lavatera. Sin Hypoiicura. Evonymus. 8. Slattranbrollimgcn an Atragene al])ina. und) Sljomas. 9. Sin Cardamine ro.scdifolia unb aljiina. 10. ä(n Arabis arenosa, nad) JMeroni) nniö. 11. 3ln Viola silvestris. lutea, billora unb calrarata. 12. Geranium saniziiincnni mirfclt nad) il)oma5'
RMME83ET–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker .
RMRCD9N2–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. I '*'"â ⢠l^wt IMH ||&|||||y|. , ; HA. MOSAIC DISEASE OF SU(;AR CANE 1. Typical mosaic on dark-green leaf. 2. Typical mosaic on light-green leaf. 3. Effect developed on certain varieties. 4. Type of spotting often mistaken for mosaic. Frontispiece. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (
RMME83DR–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . 5iii. 72. Actinuneina Kosae. A C5in ."Hofcnblättdjon mit mcl)veroit ^4^iljflorfoii mit piiiiftförmirtcn '4-U)tâ |li^e^. li 3'uvd))d)uitt ^llrd) eine -4?i)finbe, iücld)c unter ^er CSuticiila er fid) i^cbil^ot l)at; c (j:pi^crmi^^3el(e, in iucld)cm 53ll)ccliumtä^eIl, cbcnfo loie in bcm barunter liecjcnben 5){e|üpl)i)ll mad))cn. 350 fnd) uergröjK'rt. J5Qferjd)id)t bie tleinen, pnnftfiirniigen ^^5i)fniben. @ine fold)e J^rnd)t lüirb babnrd) c^ebilbet, bar, bon ienen ^Jincelfä
RMRCJ557–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. Ki .tapttel: Pyrenoinycetes 381 Jortfafe, ii»eld)er bio ShtBenmanb ber (Spibcniiisjcdo buvc{)tiol)rt mb bnnn in %oxn oiiic? oviueiterten, bavmartit] flcimmbcnon ?]fabeit§ bm Sniicurauin ber Gpibevmi'j^ellc aiujfüüf, um mm l)ier au§ al§ g3ii)celium iii Me benaclitmvtcu Bellen luciter 511 briuijen. S)iefe Snfcttioit flefci)iet)t m 5iemlicl) furjer 3eit. g)ieine Snfeftiongüerfiid^c, im bcneii auf gefunbe iuif)ueut)ülfeu Jröpfdieu fporciü)alti(en aSafjerö ein beftiuimteu ^m
RMME83E5–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . ^iß. 67. Gonibicnträgcrbüft^cl öon Rnmularia. A Ramularia obovata /•«r/v/, aibj einer ipaltöffuiinc^ bcc^ 531attcy ooii Kumex sangiiincus l)croürflciuad)jcn, ncbft cinic^en abf^cfallcncn Sporen. 300 fad) üer= ^^röiKrt. li Ilaiimlaria Histortac /^^luM. GonibienträGcrbiifd)el auc-> einer Spaltöffnung] be§ 53Iatteö uon Poly^oiumi Bistorta lier» Dorqeiüad)lcn, ncbft einigen abcicraUoncn 2poroii. 100 fad) ucroröf^ert. C 5kbfd)nnrnnn ber Sporen an ben (ionibienträaern uon H. IMs- tortae:
RMRCD9C5–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMRCJE5B–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. 8t I. 2Ibfd)nitt: 5j?araritifd)e «piläc «uf Myrlc«. gg Peronospora rufibasis Derk et Br., auf Mjrica gale in (SiiöUinb. Huf Rnbas. 69. Peronospora Rubi Rahenh., auf bcu ^öliitteru uon Rubus caesius unb fraticosus. Üuf Fragaria. 70. Peronospora Frapariae Roze et Comu, auf '-Blöttcru öou Fragaria in (-raufvcict). Huf Woffn. 71. Peronospora sparsaÄr>^., auf ben ^Blättern bcr tultiüierten ^)to|eu, einen jartcu i-^rauen 3cl)innnel auf ber unteren iBlattfeite bilbenb unb b
RMME83J6–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . 5ig. 22. 9loggcn-StcngcIbro.nb (Urocystis occultaZ'a^f«//.), oOofaa) ua-groi)Ci"t. Jrei Sporeutuäuel, feiuienb mit ^rouiDccluim uuD Sporibieubilbung. %tW Sporenfiuiuel au^ö 1 biö 3 großen inuern, brauneu unb uicl)reren fleineren, )^t peripberijdieu 3t'ücu yilammengeje^t; nur auö oeu cvitoreu t'ounnen bie Moim)d)läudH'. OKul) Ün o l ff.
RMRCJMFC–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. 3(X) I. ?(büi)nitt: ^arafitifcfie ^Piljo aber fel)V bal^, ua(l)^em bi>3 tote 33Iatt einii^e ^dt im .r")erbfte auf beni 23oben cjekiien l)at, beivnnt bic '^ilbinu^ ber 3l§ci, unb mau Faun in maiu1)en biefer ivrücl)tc ]d)on oor Cyintritt be!o 2Binteiy eiiijeliie 5cl)li'iiid)e mit fertigen Sporen fiubcn. ^io rKeifunc^ jct)reitet nun aber erft uuil)reub bee 2i>iutery meiter fort; unb im 5riil)liuiic faub id) auf foId)cn 53U'ittern bie im .yerbft mit Sporidesmiuui
RMME83CA–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . OQp 0 ^aö ÜJiutterforn. A cine3tüi^a^'ii= äl)re mit einem -})inttcrfovn c, an'] iueld)em nod) bie ücrtrürtiietc S])lia- celia s fi^t. B ber Suftanb, in meld)em bie S])liacclia s in il)reui nnteven leil c [id) ^nm 2clero!inm (^üOintterforn) nuuuanbelt. p ber 9ie[t beö oerborbencn (>-rnd)tfnoteny. Sd)macl) uergröBert. m- 83. Claviceps purpurea 7///. in feinem erftcn (intmidehnu-jeftabinm. A iiefnnbcr ^•rnd)ttnoten ber 3ftoi]cienbliite. 15 ein uom ^|>i^e ueränbcrter 5'i-'iid)tfnüten
RMME83R9–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . gig. 76. ^;j3I)9aobtc ber Slumens frone oon Primula chiuen- sis. 3laü) gramer.
RMRCJMFE–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. 13. Kapitel: Pyrenomycetes 293 Meu. Stiicf) bei anbern Gelegenheiten geigt fid) bie (S(i)it)är5e auf bem ®e= treibe, aber faft immer finb ec^ and) bann bereits abgeftorbene Seile, meld)c befallen luerben. (2o befonber» luenn in regenlofen Sommeni ba^ (betreibe üor bcr 9fleife auf bem ^elbe abftirbt unb notreif ober in ben hörnern ganj Derfnmmert i[t nnb in biefem Bnftahbe gelb unb trorfen auf bem ^alme bleibt; and; bann fc^iuär^t fid) ber letztere oft mel)r ober weniger
RMRCDKK6–. Diseases of glasshouse plants. Greenhouse plants; Plant diseases. DISEASES DUE TO FUNGI 105 entire plant. Affected leaves turn yeUow round the diseased spots and ultimately curl and die. While few glasshouses are entirely free from rust it only becomes a serious trouble when the temperature is excessively high and the plants are over-watered. AVhen the leaves at the base of the plant are continually moist ideal condi- tions for spreading the disease are produced. Thus. FlQ. 27. (a) Ptust of the carnation, (b) iiredo-spore, (c) teleuto-apore, (d) spore mass, (e) stigmonose of the carnation. w
RMME84EJ–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . * 7/S
RMRCD8XW–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. [C. B. Williams Fig. 137 Mosaic Disease of Sugar-cane : Stem Canker. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee