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[生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants

Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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How to identify Early Blight
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% m/ X* D; Y3 B+ |! i0 b+ QSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to tvb now,tvbnow,bttvb: P8 ?; d/ Z5 N" R' @& A; D
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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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9 E- o9 A- G# g$ j# mtvb now,tvbnow,bttvbin color and form concentric rings, or a
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bullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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0 F, K( K6 U$ J* I  R; q( t- Nwww.tvboxnow.comleaves may fall off. Extensive loss tvb now,tvbnow,bttvb; w7 Y7 D8 n- @$ U. |

9 i; x# v( Y4 ]of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.9 E7 b) i5 z, K* i6 c
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* c8 N$ V# c/ s( s* r$ Q/ V, Qwww.tvboxnow.comHow to identify Septoria Leaf SpotTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% e, w; V. w/ h# t+ F
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Symptoms of Septoria leaf spot also start TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。$ |; z: b& e% Q& m% h$ Y4 A0 D
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change 公仔箱論壇' ^, ]' g& g& E. R

& D- \- W5 ]( Nwww.tvboxnow.comshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
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6 `! M/ M6 |, i7 A% Ztvb now,tvbnow,bttvbSmall dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb% y! F9 F+ z6 T# }+ c

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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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and dead. Stems can also become infected but * v, ?& z# L' I2 u+ i+ H$ u

\" m1 m7 h$ \# B+ htvb now,tvbnow,bttvbinfection of fruit
is rare.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* N  c4 i  ?& F$ D
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) F' T: x5 Z7 D. W8 ?1 Dtvb now,tvbnow,bttvbHow to Prevent and Control Early Blight and : f# S) O1 t+ Z  n  M5 U2 \
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Septoria Leaf Spot

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Follow the 12 easy steps below to enjoy a
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long season
of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.3 Z0 n; @1 ?3 _- R) H

+ P' c# e2 g# ^6 B9 ]" etvb now,tvbnow,bttvbWeed your garden. Some weeds,
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like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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Rotate crop locations. Don’t 6 [7 i( ~/ I2 M4 q& A
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas www.tvboxnow.com1 \2 ^$ o) T2 H8 i- V8 Q) S
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where tomatoes were grown.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。9 U1 W2 S9 b& w8 j8 \

9 f6 O$ h; U, Y; Rwww.tvboxnow.comGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
/ Q1 B" A& {  V0 J公仔箱論壇Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 公仔箱論壇. o, c6 U" m. e+ e2 G! N
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fungus from the soil to your
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plants.
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7 {6 P5 S3 ?3 ztvb now,tvbnow,bttvbStake or cage plants to keep them
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。# u3 P  P+ ~3 o& q2 z- n  H  I

9 X+ Q) t% y; X7 i4 }6 vtvb now,tvbnow,bttvbspace above the soil without any leaves. Do not use
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overhead watering
.
( i+ U) i5 @+ Q6 qtvb now,tvbnow,bttvbAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. * k( I# L0 R' X5 q4 W* ]6 u
Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 公仔箱論壇. L* i9 ^3 s1 V5 G! Z  }  w8 C

9 q& _' y* G0 a5 U( w3 R% O1 Nfungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are tvb now,tvbnow,bttvb9 |- v/ ?9 w& B$ ~! ~

3 M0 m& }# @7 B* j& X! owet. Keep your plants happy and healthy. Weak and stressed www.tvboxnow.com8 Q! L5 V7 C\" r: {5 f

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are more susceptible to disease.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。$ |/ e- Y& C4 ~/ c

& w% L2 I, o3 a! SRemove and destroy or throw away diseased leaves, both off the 公仔箱論壇6 t( v4 c8 W0 C\" U2 D/ V8 E
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb9 J1 ?, W( ~  j

3 C* z$ L! @* j" O" ~公仔箱論壇enough. If a plant is heavily infected公仔箱論壇& |$ I: F( ~9 N: [
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, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 公仔箱論壇9 b+ m( [8 y$ P9 ^; S
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to remove diseased leaves should be disinfected before being used on a different plant.tvb now,tvbnow,bttvb8 i% K, j. J+ @+ g8 x

% @- ^" `9 i. I  OSpray plants to prevent and control the
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Commercial fungicides are available. For organic gardens, try
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GreenCure." U2 n3 E+ u$ F. H
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5 K3 s8 Z  f3 T1 B* e2 }www.tvboxnow.comLate Blight on Tomato Plants
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 公仔箱論壇, d) S* e, E! @" }( k
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plants in a garden. Once a tomato plant
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。. ^$ b# ]- ^! k, ?) R

  D! g( m8 S" A: x) B. O公仔箱論壇water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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Septoria leaf spot infections will also help prevent late blight infections.
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