Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but $ F% H5 h) ~; Y7 K- L) \2 E6 z
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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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3 f8 [$ [* n3 q1 o; `% Z4 ^公仔箱論壇Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ) c, R; G; M8 Y0 }! L
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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 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。7 ?5 J7 k6 C3 B& @
" f$ K# c: |; |" `, O8 c, Q7 bos.tvboxnow.comin color and form concentric rings, or a
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+ U( h# J/ R2 k0 T8 N+ W\" A公仔箱論壇bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, ' i1 t+ R. Z3 p$ b8 _: H
* a# O5 Q2 g: L9 P, Wtvb now,tvbnow,bttvbleaves may fall off. Extensive loss 公仔箱論壇# n* M3 A) }9 @5 k- T6 C2 Y+ R
" ?8 o2 \! \- i* }; Y9 Oof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.7 f: p1 c) r4 Y# k2 b$ R B2 D' b( |
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How to identify Septoria Leaf Spot
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0 s5 Z8 ~8 G4 }# [& c" F" W' e; PSymptoms of Septoria leaf spot also start
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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! y& w* X7 u: k7 |
* ]9 a2 H" g8 J! ]- B: _os.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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5 k" @/ X) C) @5 k! }3 T( STVBNOW 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。Small dark spots, the fruiting bodies of the fungusos.tvboxnow.com; o! x& g$ w! a\" y v
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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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) B& U) c6 \ t- }5 m9 ~4 P* i" m4 Uos.tvboxnow.comand dead. Stems can also become infected but tvb now,tvbnow,bttvb1 e; b+ S4 T, H
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infection of fruit is rare.
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How to Prevent and Control Early Blight 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。1 R: C* g4 d/ p( p1 r4 O
6 z! }$ g! A& HTVBNOW 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。Septoria Leaf Spot) c( C/ F, |6 T4 w
+ S2 `; g+ @: [0 ^Follow the 12 easy steps below to enjoy a tvb now,tvbnow,bttvb- f4 o* r, X& C& n- I
1 p! q3 ~3 ^( {5 @# z公仔箱論壇long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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Weed your garden. Some weeds,
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! h- o# s9 ~0 K; _3 `) g: Z# Mtvb now,tvbnow,bttvblike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.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。: d! Q5 e3 f& N- h) X7 l( m
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Rotate crop locations. Don’t 公仔箱論壇! H6 g$ z7 P2 O9 V& s( W
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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
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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。" s( C1 w* F+ a3 k3 O3 l, e
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
: H# V4 ?) W/ T1 @! V$ E; J, X6 e$ x! w) l7 P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 os.tvboxnow.com9 `" Z. g; }: g: j
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fungus from the soil to your
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plants.
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Stake or cage plants to keep them tvb now,tvbnow,bttvb* Z g, g4 `* [! b1 t# @
! b% X; p& R% T7 ^* ~# i8 Mtvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 公仔箱論壇$ h( Q2 `2 }. R) b
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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
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space above the soil without any leaves. Do not use
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& L( G- w) |* Y& J _2 `overhead watering.
; Q3 w2 B3 K' ^9 T( t9 AAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. os.tvboxnow.com9 |5 w5 ?3 X! s M4 x
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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wet. 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。0 H\" O$ c2 T9 @ k% P
1 c# l8 D, w. ^8 D Z6 _tvb now,tvbnow,bttvbplants are more susceptible to disease.
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Remove and destroy or throw away diseased leaves, both off the 8 m* a. q4 o/ F) ], Z4 }. y& F4 i( [
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 公仔箱論壇4 i' b# l1 C. M, p" ], e% s
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enough. If a plant is heavily infected5 ?* p7 d( [2 a* D, S& `0 e% v
t g6 h* u8 {, 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 k7 x4 ]3 m8 D- E( q. z1 n
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to remove diseased leaves should be disinfected before being used on a different plant.
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3 \+ X. E( z' _9 d/ Q7 vTVBNOW 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。Spray plants to prevent and control the tvb now,tvbnow,bttvb7 {5 A\" J$ @6 k0 N3 A
: E3 x& m/ k3 J5 p! e1 I5 Kspread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 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。5 u* T' _1 `* G/ O, V2 d: L# ?0 u
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7 j7 W& U0 l5 ^; F$ uLate 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 0 m/ `3 ~3 Y, i5 t& ]& B1 k, R1 C! j
# [! i. `' y' \2 M' v% F' z0 K4 Cos.tvboxnow.complants 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,
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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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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and ( d* h9 o/ x* e0 v% y6 K
0 G: y" I& H8 @8 q8 _( ]( }tvb now,tvbnow,bttvbSeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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