Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 5.39.217.76/ D x$ O0 H4 c% n
+ x: }" ~% R+ e/ O; i8 Z) G! y5.39.217.76can 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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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇/ q, e; y! F, |: D( H6 i$ f# g
* C0 ~% I7 i6 y' h" M# T8 c( H' W+ Qnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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8 p s) k! O/ I$ Zin color and form concentric rings, or a
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7 D1 U1 Y+ b4 |, \2 l8 C( e1 Vbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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leaves may fall off. Extensive loss
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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How to identify Septoria Leaf Spottvb now,tvbnow,bttvb8 C/ i# O9 w4 B( D& d
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Symptoms of Septoria leaf spot also start
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5 \: z0 g' J; f, B3 B公仔箱論壇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/ V ~3 `" [: f- w: _6 E+ y( [
: I" {1 z2 j* a1 Xshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. tvb now,tvbnow,bttvb6 G# Y+ j# X; @) r( y$ N
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Small dark spots, the fruiting bodies of the fungus
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& R# U# X& Y9 [( w) s: {/ p, 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 / p9 R7 [5 d! v3 |1 R3 x6 T
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infection of fruit is rare.
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How to Prevent and Control Early Blight and
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Septoria Leaf Spottvb now,tvbnow,bttvb# q! V) Y' \/ ]
- D1 Z! h9 X8 [tvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a
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; E! t, C3 X2 |) H4 y- r* u* T6 A' clong season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.: d7 O5 ] ~# m' @2 W4 g
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Weed your garden. Some weeds, 5.39.217.766 I' @: g# C6 p8 e
: l" M1 u# w) d% f% e/ J公仔箱論壇like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. G6 y# G, O) d" l' ]! Y
( j6 z0 L- V0 Y( S0 g( h% }9 ]Rotate crop locations. Don’t
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; }! @; _- ~+ e$ \8 p5 q( hplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas + H# j% z6 Q. E0 _5 D; y2 y6 }
u' Q8 L1 v$ G8 [4 s6 a6 X5.39.217.76where 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。8 u }: [4 b9 S$ g! S( P- n1 I: i
0 x# m8 t. @2 R+ _! T+ ptvb now,tvbnow,bttvbGive your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb* J# [+ y+ x5 ?* Q* t
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of ; `8 W& k6 ]& f( t$ |+ K& z4 @& w
7 r7 r7 S% [" q$ XTVBNOW 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。fungus from the soil to your
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Stake or cage plants to keep them }8 m4 U0 Z- d& k
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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 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。! R6 E/ e/ T; I$ y# Q- r& g
. ?1 H# h8 a: L! U6 QTVBNOW 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。cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb) t" t2 O, Z7 q7 a2 Q; n1 j
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space above the soil without any leaves. Do not use 公仔箱論壇 k. z& e8 L# S. a/ B, ?
1 @& F% o# N4 T6 h% ~7 n. woverhead watering. ' _; j+ a3 }) K- Q
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ! Y9 z& Z6 E/ ^
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
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fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are
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, Q: d' z2 x( ?2 zwet. Keep your plants happy and healthy. Weak and stressed 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。3 s; q3 q3 Y4 T% ?- y
公仔箱論壇2 T6 k7 i2 N2 t, b
plants are more susceptible to disease.
. m& r: h8 j+ a; X4 H, `3 v) Q5.39.217.76
@+ W; x6 ^) ^5 \9 i, u9 _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。Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
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5 P. \$ h6 ?' y) g" [" k5.39.217.76enough. If a plant is heavily infected
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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 tvb now,tvbnow,bttvb7 C. g; {4 N, n
- ?& ?6 }4 ^3 k4 F- j$ b! yto remove diseased leaves should be disinfected before being used on a different plant.( q( G. z- A( |) ?
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Spray plants to prevent and control the
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try
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GreenCure.
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Late Blight on Tomato Plantstvb now,tvbnow,bttvb6 V3 c2 W6 d/ _. v2 i3 }
! c" r5 ^" f" y) l2 |+ I公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato + f. r {" g w
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plants in a garden. Once a tomato plant 5.39.217.76' g- w1 Z; a: d, F( ]- w; w, L
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 5.39.217.76! R/ N5 a; i, M3 q1 Y& K3 J
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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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9 S. z5 H2 m' a# w$ jTVBNOW 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。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
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0 ], Z* G5 u% f' E2 {公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections. |