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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" a; S) ?$ G& A* L, ], O# Atvb now,tvbnow,bttvbcan 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: w# Y, q1 U& }
) {$ i" W( H' t$ x& ^- Dos.tvboxnow.comSymptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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) E% x$ Z! Q+ U% Hnewer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown - L' N/ ^' N- w9 B7 L
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in 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, 9 |0 ~0 ~3 Z" F1 _9 m; e7 r5 P
1 |3 ^ `$ a- g$ Yos.tvboxnow.comleaves may fall off. Extensive loss 公仔箱論壇) @1 B2 Q- x0 ]' {; f$ ^6 \
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of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.os.tvboxnow.com p5 K( f) F6 S
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1 |3 l) y, W. @- U0 Q& X! v& w/ ttvb now,tvbnow,bttvbHow to identify Septoria Leaf Spot- n9 e/ d7 _% V) C& G
0 K0 u8 G: e& Dos.tvboxnow.comSymptoms of Septoria leaf spot also start ( Q5 @! \) g+ ~. _
) c ^* X% y0 @, ztvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
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; E4 q6 \& I; M* p* H- k+ ftvb now,tvbnow,bttvbshape 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,bttvb: B$ [5 c/ F8 S1 q. v8 I
: m9 i2 E+ p* ^/ d- |4 ~! ~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。Small dark spots, the fruiting bodies of the fungusos.tvboxnow.com& u P7 D2 x6 @& j& _- |
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry , a( v4 _1 e; n; B' E
1 Z; v; Z9 G# Z; U3 _and dead. Stems can also become infected but tvb now,tvbnow,bttvb6 X' k) f( Z9 m8 e Z3 P& y
/ f2 e; u3 u8 Y) a' ~3 D! Zinfection 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。* d( s4 `& V; C, ]- |+ e; B
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How to Prevent and Control Early Blight and
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- `' C8 n$ c3 b# j3 _, u+ {公仔箱論壇Septoria Leaf Spot公仔箱論壇4 `2 Q; m+ T9 b
8 ]0 H2 ~: t' Y M5 d+ O; g9 q5 K1 A8 c; R公仔箱論壇Follow the 12 easy steps below to enjoy a os.tvboxnow.com$ v3 d$ l3 `: F- G9 ^' J- B
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long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.tvb now,tvbnow,bttvb( {! d7 k4 Q. M; b2 m
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Weed your garden. Some weeds,
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5 Z% d c* }0 t: @like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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+ }, T0 ]' q8 g. \7 W0 E: }$ { fRotate crop locations. Don’t
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2 q: V+ z* M4 }/ Z# h. Gplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas tvb now,tvbnow,bttvb9 n; x8 c! l. ?$ f" _) Y+ f6 ]
" V" n7 s1 Z v2 n/ \. Y- M% T5 s# nTVBNOW 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。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。2 W9 o0 V5 j9 @2 ?& {5 X
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
8 ]; u1 f* W3 }tvb now,tvbnow,bttvbCover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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+ Q9 O1 R' i9 p& H! M2 lplants.
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Stake or cage plants to keep them 公仔箱論壇. b5 B4 N! l+ n
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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 tvb now,tvbnow,bttvb1 E1 N0 e! a# g0 l! S$ f1 S
) E% z# |7 q6 ~+ A- Z: T# ?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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) Q ~: x) u4 o! uTVBNOW 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。space above the soil without any leaves. Do not use
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# N- p. j9 h1 R/ B2 S' eTVBNOW 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。overhead watering. 公仔箱論壇# P& s- H9 M4 x, J2 e8 h$ z
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ; A% l& ` G* C r% E* d; \
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 os.tvboxnow.com' l) _# a+ u6 h' B* `
' W" `& @; y2 r o* I$ P4 q. gos.tvboxnow.comfungus 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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: W) G) W" D0 r& h2 o7 ntvb now,tvbnow,bttvbwet. Keep your plants happy and healthy. Weak and stressed
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3 Q) w7 x- G `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。plants are more susceptible to disease.os.tvboxnow.com: V, F: J4 y1 N9 K
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Remove and destroy or throw away diseased leaves, both off the : {2 U9 S/ O, ~. D
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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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) H6 X: W; [3 M& P# z4 j& Z3 gos.tvboxnow.comenough. 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
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& i- ~% J. b% Lto remove diseased leaves should be disinfected before being used on a different plant.公仔箱論壇7 I0 O s$ l5 K+ u
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Spray plants to prevent and control the 公仔箱論壇% P% D$ m: u/ e; B7 F! `6 x
( C' z2 V5 g) z# V, zTVBNOW 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。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 Plants
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5 R+ ^8 x1 C% x1 ]Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato os.tvboxnow.com6 r( L( I, t1 W
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plants in a garden. Once a tomato plant 8 v" M& ~# x( l1 j' k
b, u9 L6 g+ p! e0 I* `tvb now,tvbnow,bttvbis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
- l$ y+ `: I3 @8 \" z5 ]7 S, n& S- N+ yTVBNOW 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。
/ Y8 s5 e. p; l4 Kwater-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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8 C4 L5 x6 C1 ^3 OSeptoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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